IndraLab

Statements


OTUB1 affects Ubiquitin
| 39 78
OTUB1 binds Ubiquitin.
| 10 76
| 10 69

sparser
"The CCHFV-OTU X-ray structure in complex with Ub revealed that the N-terminal β-strands interact with a hydrophobic patch in Ub, resulting in a 275 rotation of Ub with relationship to the OTU protease, as compared to OTUB1-Ub complex [11] ."
| PMC

sparser
"OTUB1 binding to the charged E2~Ub is allosterically regulated by an additional free ubiquitin monomer that binds to the OTUB1 distal ubiquitin-binding site, triggering conformational changes that favor binding of the UBC13~Ub donor ubiquitin in the OTUB1 proximal site xref ."

sparser
"The repressive complex formed by OTUB1 binding to charged E2~Ub and free ubiquitin presumably interferes with OTUB1 DUB activity by occupying both proximal and distal ubiquitin-binding sites of OTUB1, thus precluding binding of a Lys48 polyubiquitin substrate."

sparser
"NMR chemical shift perturbation studies and activity assays with mutant diUbs indicate that the proximal and distal Ubs bind to separate sites on hOtu1."

sparser
"Taken together, our results indicate that the ability of OTUB1 to bind preferentially to the UBC13~Ub conjugate and inhibit ubiquitin transfer is allosterically regulated by free ubiquitin binding to the distal site of OTUB1, which triggers capture of the conjugated ubiquitin in the OTUB1 proximal site."

sparser
"Since the OTUB1 N-terminus was implicated in binding to the donor ubiquitin in the UBC13~Ub conjugate xref , we asked whether Ubal binding to OTUB1 could enhance inhibition of UBC13 by stimulating binding of the OTUB1 N-terminus to the donor ubiquitin."

sparser
"Interaction of the OTUB1 N-terminus with uncharged E2s (such as UBCH5B) increases OTUB1 activity towards K48-ubiquitin chains by stabilizing the structure of an OTUB1 Ub-binding site [ xref ]."

reach
"This affords van der Waals and salt bridge (between Glu51 in donor Ub and Arg72 and Arg74 in free Ub) interactions between Ub molecules (XREF_FIG), which we suspected could confer interdependency of Ub ~ UbcH5b and Ub binding to OTUB1."

sparser
"Alignment of S1 Ub's between the OTUB1-Ub and OtDUB-Ub structure is shown on the right, with OtDUB in cyan, VR-1 in slate, and only Ub molecules from the OTUB1-Ub structure visible (same coloring as left)."

reach
"Further demonstrating an interdependency of binding, we found that free Ub bound to OTUB1 only in the presence of UbcH5b ~ Ub (XREF_FIG)."
Ubiquitin binds OTUB1 and OtDUB. 2 / 2
| 2

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage. , the authors present mutations along one face of VR-1 that target the S1 site."

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage."
Ubiquitin binds OTUB1 and polyubiquitin. 2 / 2
| 2

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 enzyme stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."
| 1

sparser
"It is conceivable that Ub/UbV-CC4 binding to the OTU domain might simply lock the polymerase in an inactive state, preventing RNA synthesis."

sparser
"When OTUB1 cleaves the K48-linked chain, two ubiquitin binding sites in OTUB1 interact with both proximal and distal ubiquitins of the K48-linked ubiquitin chain [ xref ]."

sparser
"The free Ub moiety interacts with OTUB1 at its distal Ub-binding site in a manner nearly identical to yeast Otu1 covalently bound to Ub-Br3 ( xref ) ( xref ) burying a total surface area of 2344 Å 2 ."
OTUB1 inhibits Ubiquitin.
| 22 2
| 20 2

reach
"In contrast to BRCC36, USP16 and USP3, OTUB1 inhibits the DSB ubiquitin response downstream of RNF8, at the level of RNF168."

reach
"This occurs by different molecular mechanisms and requires catalytic activity of USP15, but not that of OTUB1, which rather binds to and inhibits the ubiquitin conjugating activity of the cognate E2 enzyme [XREF_BIBR, XREF_BIBR]."

sparser
"OTUB1 also inhibits ubiquitin transfer to the substrate by binding to the E2-Ub complex, independent of DUB activity [ xref ]."

reach
"OTUB1 inhibits UBE2N by binding to the charged E2∼Ub thioester intermediate and preventing ubiquitin transfer (17, 19, 20)."

reach
"In that respect, OTUB1 was described recently to inhibit Ub chain conjugation, independently of its catalytic activity, through direct binding to the E2 ubiquitin-conjugating enzyme UBC13 (Nakada et al, 2010)."

reach
"These results suggest that by binding to E2 ubiquitin conjugating enzymes, OTUB1 appears to inhibit the transfer of ubiquitin from E2-Ub complex onto E3 ubiquitin ligases."

reach
"In contrast to BRCC36, USP16 and USP3, OTUB1 inhibits the DSB ubiquitin response downstream of RNF8, at the level of RNF168."

reach
"IL-15 mediates membrane recruitment of Otub1, which inhibits ubiquitin dependent activation of AKT, a kinase that is pivotal for T cell activation and metabolism."

reach
"We detected decreases in ubiquitin carboxy-terminal hydrolase L1, ubiquitin thioesterase OTUB1, and proteasome subunit alpha types 1 and 3 in cerebral ischemic damage."

reach
"The OTUB1 protein interacts directly with the E2 ubiquitin conjugating protein UBC13 and prevents ubiquitin transfer, thereby inhibiting double-strand-break-induced chromatin ubiquitination XREF_BIBR, XREF_BIBR."
OTUB1 bound to E2 inhibits Ubiquitin. 2 / 2
| 2

reach
"OTUB1 binds to E2 ~ Ub thioester intermediates and prevent ubiquitin transfer, thereby non catalytically inhibiting accumulation of polyubiquitin."

reach
"The ability of OTUB1 to bind to E2 enzymes and inhibit ubiquitin transfer in a manner that does not depend on OTUB1 catalytic activity was first discovered in studies of DNA damage signaling, in which OTUB1 inhibits the E2, UBE2N/UBC13 (17)."
OTUB1 activates Ubiquitin.
| 5
| 3

reach
"For this, heterotypic Ub chains were assembled from 25 mg WT Ub, and the reaction was subsequently treated with OTUB1, which cleaved all Lys48-linkages within the polymers."

reach
"OTUB1 has previously been reported to inhibit ubiquitylation of target proteins by interacting with and inhibiting E2 ubiquitin conjugating enzymes XREF_BIBR XREF_BIBR XREF_BIBR XREF_BIBR."

reach
"Immunoblot analysis revealed that ubiquitin chains were completely degraded by AMSH but neither by OTUB1 nor the GST control, further supporting our finding that TRIAD3 synthesises K63 linked ubiquitin chains in vitro, full length TRIAD3 protein as well as the TRIAD3-RBR 845 fragment."
OTUB1 bound to E2 activates Ubiquitin. 2 / 2
| 2

reach
"OTUB1 binds to a subset of E2 ubiquitin conjugating enzymes and inhibits their activity by trapping the E2 ~ ubiquitin thioester and preventing ubiquitin transfer."

reach
"OTUB1 binds to a subset of E2 ubiquitin-conjugating enzymes and inhibits their activity by trapping the E2~ubiquitin thioester and preventing ubiquitin transfer."
OTUB1 decreases the amount of Ubiquitin.
| 2
Modified OTUB1 decreases the amount of Ubiquitin. 2 / 2
| 2

reach
"In contrast, only overexpression of mammalian Otubain 1 and Cezanne moderately decreased cellular global Ub conjugate levels, while expression of A20 or Otubain 2 had no effect on total levels of ubiquitinated proteins (Balakirev et al., 2003; Evans et al., 2004; Evans et al., 2003) ."

reach
"In contrast, only overexpression of Otubain 1 and Cezanne moderately decreased cellular global Ub conjugate levels, while expression of A20 or Otubain 2 had no effect on total levels of ubiquitinated proteins (Balakirev et al., 2003, Evans et al., 2003, Evans et al., 2004)."
OTUB1 affects UBE2N
2 12 1 | 1 56 34
OTUB1 binds UBE2N.
1 12 | 34 25
1 12 | 32 25

reach
"Furthermore, the atomic level information of the interaction between human OTUB1 and UBC13 has not been reported."

reach
"OTUB1 binding to Ubc13 interferes with the interactions of donor ubiquitin and TRAF6 with the E2 enzyme, leading to the inhibition of Lys63 linked polyubiquitin chain synthesis in DNA damage response XREF_BIBR."

reach
"Another obvious inhibitory feature of OTUB1 binding to Ubc13 ~ Ub (or E2 ~ Ub) is that it occludes and overlaps with the RING E3 binding site."

reach
"The K d for binding of UBE2N to OTUB1 was 8.1 muM, which is consistent with previous studies that measured a K d of 7.04 muM using fluorescence polarization 31 and K d of 8.9 muM measured by surface plasmon resonance using a GST-OTUB1 fusion 29."

sparser
"OTUB1 binding to Ubc13 interferes with the interactions of donor ubiquitin and TRAF6 with the E2 enzyme, leading to the inhibition of Lys63-linked polyubiquitin chain synthesis in DNA damage response xref ."

sparser
"Cellular roles have been identified for the interaction of OTUB1 with UBE2N and members of the UBE2D family, but not for interactions with UBE2E E2 enzymes."

No evidence text available

reach
"Like TARF6 and CHIP, OTUB1 binds to Ubc13 through the alpha1 helix, L1 and L2 loops (XREF_FIG)."

No evidence text available

No evidence text available
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
| 1

reach
"27,28 OTUB1 interacts with Ubc13 through the H1 helix and S3-S4 and 3 10 -1-H2 loops, which are the same regions involved in OspI binding."
OTUB1 inhibits UBE2N.
1 | 1 14 9
1 | 1 14 9

reach
"OTUB1 strongly suppresses UBC13 dependent Lys-63-linked tri-Ub production, whereas it allows di-Ub production in vitro."

eidos
"OTUB1 inhibits UBE2N by binding to the charged E2 ~ Ub thioester intermediate and preventing ubiquitin transfer ( 17 , 19 , 20 ) ."

sparser
"OTUB1 directly inhibits the E2 enzyme UBC13, independently of its catalytic activity."

reach
"It was reported that Otub1, a deubiquitinase, also negatively regulates the DDR in a catalytically independent manner by regulating the activity of UBC13, an E2 ubiquitin conjugating enzyme for RNF8."

sparser
"Here we describe structural and biochemical studies elucidating how OTUB1 inhibits UBC13 and other E2 enzymes."

sparser
"Our rationale was to test whether OTUB1 can inhibit yeast Ubc13."

reach
"Surprisingly, UBC13, which is inhibited by OTUB1, did not stimulate OTUB1 as strongly as the other activating E2s."

reach
"Here we describe structural and biochemical studies elucidating how OTUB1 inhibits UBC13 and other E2 enzymes."

sparser
"In this study, we sought to elucidate the structural mechanism by which OTUB1 recognizes and inhibits UBC13, UbcH5 and related E2 enzymes."

reach
"Our rationale was to test whether OTUB1 can inhibit yeast Ubc13."
OTUB1 activates UBE2N.
| 5
OTUB1 activates UBE2N. 5 / 5
| 5

reach
"The deubiquitinase OTUB1 augments NF-kappaB-dependent immune responses in dendritic cells in infection and inflammation by stabilizing UBC13."

reach
"Recent studies also show that OTUB1 augments NF-κB-dependent immune responses in dendritic cells in infection and inflammation by stabilizing UBC13 [76]."

reach
"Mechanistically, OTUB1 promoted cytokine production in DCs by downregulating K48-linked ubiquitination and increasing the stability of UBC13, an E2-conjugating enzyme critical for the activation of canonical NF-κB and MAPK signaling."

reach
"Since K48-linked ubiquitination is associated with protein degradation, OTUB1 increases the stability of UBC13."

reach
"Interestingly, OTUB1 is not involved in the cleavage of polyubiquitin chains but directly targets UBC13 [77]."
OTUB1 deubiquitinates UBE2N.
1 | 2
OTUB1 leads to the deubiquitination of UBE2N. 3 / 3
1 | 2

reach
"Since, OTUB1 inhibits UBC13 dependent polyubiquitylation but not monoubiquitylation, it may be that a single ubiquitin conjugated to another protein at DSBs is sufficient to be recognized by the MIU d[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

"Although OTUB1 is not catalytically involved in deubiquitinating these K63-linked chains, it may interact with Ubc13 and inhibit the E3 ligase RNF168"

reach
"As shown in Fig. 3e, OTUB1 reduced the K48-linked ubiquitination of UBC13 in TgPFN-stimulated BMDCs."
OTUB1 ubiquitinates UBE2N.
| 1
OTUB1 ubiquitinates UBE2N. 1 / 1
| 1

reach
"OTUB1 preferentially binds to ubiquitylated UBC13 via its amino-terminal domain and inhibits ubiquitin-chain extension in a manner independent of its catalytic activity."
Ubiquitin affects OTUB1
| 15 76
Ubiquitin binds OTUB1.
| 10 76
| 10 69

sparser
"The CCHFV-OTU X-ray structure in complex with Ub revealed that the N-terminal β-strands interact with a hydrophobic patch in Ub, resulting in a 275 rotation of Ub with relationship to the OTU protease, as compared to OTUB1-Ub complex [11] ."
| PMC

sparser
"OTUB1 binding to the charged E2~Ub is allosterically regulated by an additional free ubiquitin monomer that binds to the OTUB1 distal ubiquitin-binding site, triggering conformational changes that favor binding of the UBC13~Ub donor ubiquitin in the OTUB1 proximal site xref ."

sparser
"The repressive complex formed by OTUB1 binding to charged E2~Ub and free ubiquitin presumably interferes with OTUB1 DUB activity by occupying both proximal and distal ubiquitin-binding sites of OTUB1, thus precluding binding of a Lys48 polyubiquitin substrate."

sparser
"NMR chemical shift perturbation studies and activity assays with mutant diUbs indicate that the proximal and distal Ubs bind to separate sites on hOtu1."

sparser
"Taken together, our results indicate that the ability of OTUB1 to bind preferentially to the UBC13~Ub conjugate and inhibit ubiquitin transfer is allosterically regulated by free ubiquitin binding to the distal site of OTUB1, which triggers capture of the conjugated ubiquitin in the OTUB1 proximal site."

sparser
"Since the OTUB1 N-terminus was implicated in binding to the donor ubiquitin in the UBC13~Ub conjugate xref , we asked whether Ubal binding to OTUB1 could enhance inhibition of UBC13 by stimulating binding of the OTUB1 N-terminus to the donor ubiquitin."

sparser
"Interaction of the OTUB1 N-terminus with uncharged E2s (such as UBCH5B) increases OTUB1 activity towards K48-ubiquitin chains by stabilizing the structure of an OTUB1 Ub-binding site [ xref ]."

reach
"This affords van der Waals and salt bridge (between Glu51 in donor Ub and Arg72 and Arg74 in free Ub) interactions between Ub molecules (XREF_FIG), which we suspected could confer interdependency of Ub ~ UbcH5b and Ub binding to OTUB1."

sparser
"Alignment of S1 Ub's between the OTUB1-Ub and OtDUB-Ub structure is shown on the right, with OtDUB in cyan, VR-1 in slate, and only Ub molecules from the OTUB1-Ub structure visible (same coloring as left)."

reach
"Further demonstrating an interdependency of binding, we found that free Ub bound to OTUB1 only in the presence of UbcH5b ~ Ub (XREF_FIG)."
Ubiquitin binds OTUB1 and OtDUB. 2 / 2
| 2

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage. , the authors present mutations along one face of VR-1 that target the S1 site."

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage."
Ubiquitin binds OTUB1 and polyubiquitin. 2 / 2
| 2

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 enzyme stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."
| 1

sparser
"It is conceivable that Ub/UbV-CC4 binding to the OTU domain might simply lock the polymerase in an inactive state, preventing RNA synthesis."

sparser
"When OTUB1 cleaves the K48-linked chain, two ubiquitin binding sites in OTUB1 interact with both proximal and distal ubiquitins of the K48-linked ubiquitin chain [ xref ]."

sparser
"The free Ub moiety interacts with OTUB1 at its distal Ub-binding site in a manner nearly identical to yeast Otu1 covalently bound to Ub-Br3 ( xref ) ( xref ) burying a total surface area of 2344 Å 2 ."
Ubiquitin activates OTUB1.
| 2
| 2

reach
"These studies were performed in the presence of OTUB1-stimulating Ubiquitin-conjugating enzyme E2 D1 (UBE2D1), an E2 ubiquitin ligase that engages in a complex with OTUB1 to stimulate OTUB1 activity."

reach
"Importantly, ubiquitin variants targeting OTUB1 selectively inhibited OTUB1 mediated cleavage of K48 di-ubiquitin."
Ubiquitin inhibits OTUB1.
| 3
| 3

reach
"Importantly, ubiquitin variants targeting OTUB1 selectively inhibited OTUB1 mediated cleavage of K48 di-ubiquitin."

reach
"Ubv.B1.1 efficiently inhibited OTUB1 catalyzed cleavage of K48‐linked di‐Ub [132]."

reach
"Indeed, the inhibitory complex formed by OTUB1 with charged E2 ~ Ub thioester and free ubiquitin also inhibits OTUB1 DUB activity, thus raising the possibility that inhibition of OTUB1 could be an equally important function of the OTUB1-Ub-E2 ~ Ub inhibitory complex."
OTUB1 is modified
2 | 1 93 6
OTUB1 is phosphorylated.
2 | 1 52 6
OTUB1 is phosphorylated. 10 / 29
| 1 25 3

rlimsp
"We demonstrate that the Yersinia-encoded virulence factor YpkA (YopO) kinase interacts with a post-translationally modified form of OTUB1 that contains multiple phosphorylation sites."

sparser
"One avenue might entail disruption of the inhibitory complex by phosphorylation of OTUB1 on one or more of the nine conserved phosphorylatable residues located at essential interaction surfaces."

sparser
"Our findings show that the phosphorylation of OTUB1 at Ser 16 did not impact its catalytic activity and its ability to interact with K63-linked ubiquitin chains as well as the E2 enzyme, UBE2N. Instead, we demonstrated that Ser 16 phosphorylation of OTUB1 was essential for its nuclear accumulation, suggesting that nuclear roles of OTUB1 are likely to be regulated through CK2-mediated phosphorylation of OTUB1."

sparser
"Furthermore, human renal clear carcinoma (RCC) tissues revealed a strong correlation between phosphorylation of OTUB1(Ser16) and p53/Bax expression."

sparser
"The phosphorylated OTU domain displays catalytic activity similar to the full length DUBA ( xref )."

sparser
"Consistent with these findings, CK2α failed to phosphorylate OTUB1[S16A] and OTUB1[S16A/S18A] mutants but not OTUB1[S18A] in vitro ( xref )."

sparser
"Otubain 1 Phosphorylation Interferes with its Catalytic Activity and Function in Bacterial Infection."

sparser
"Our results demonstrate that cathepsin K inhibition enhances oxaliplatin-induced apoptosis by increasing OTUB1 phosphorylation via CK2 activation, thereby promoting p53 stabilization, and hence upregulating Bax."

sparser
"Furthermore, in our phosphoproteomic analysis of OTUB1 when overexpressed in HEK293 cells, we observed a two-fold increase in the phosphorylation of the identified OTUB1 phosphopeptide (QEPLG S D S EGVNCLAYDEAIMAQQDR) upon TGFβ stimulation ( xref )."

sparser
"Phosphorylation of OTUB1 at Ser 16 causes nuclear accumulation of OTUB1."
OTUB1 is phosphorylated on S16. 10 / 22
1 | 18 3

sparser
"To further confirm that CK2 was the mediator for OTUB1 Ser 16 phosphorylation in cells, a loss-of-function experiment was employed."

rlimsp
"Pharmacological inhibition or genetic ablation of CK2 blocked the phosphorylation of OTUB1 at Ser(16), causing its nuclear exclusion in various cell types."

sparser
"We tested whether the phosphorylation of OTUB1 at Ser 16 , which alters its subcellular localization, was essential for the ability of OTUB1 to modulate IR-induced DNA damage repair."

sparser
"Our findings show that the phosphorylation of OTUB1 at Ser 16 did not impact its catalytic activity and its ability to interact with K63-linked ubiquitin chains as well as the E2 enzyme, UBE2N. Instead, we demonstrated that Ser 16 phosphorylation of OTUB1 was essential for its nuclear accumulation, suggesting that nuclear roles of OTUB1 are likely to be regulated through CK2-mediated phosphorylation of OTUB1."

sparser
"Deubiquitylation was observed in the absence and presence of UBE2D2 and the phosphorylation of OTUB1 at Ser 16 did not substantially alter its catalytic activity ( xref )."

sparser
"We set out to characterize the phosphorylation of OTUB1 at Ser 16 and Ser 18 in vitro and in vivo."

sparser
"Consistent with this notion, treatment of U2OS cells with TDB, which inhibited the phosphorylation of OTUB1 at Ser 16 and caused its nuclear exclusion, also impaired 53BP1 foci formation upon IR irradiation ( xref )."

sparser
"Phosphorylation of OTUB1 at Ser 16 does not affect its catalytic activity and interactions with UBE2N."

sparser
"Here, we found that the phosphorylation of OTUB1 at Ser 16 and its subsequent nuclear accumulation is mediated by casein kinase 2 (CK2)."

sparser
"The observation that the phosphorylation of OTUB1 at Ser 16 induced its nuclear accumulation suggests that its subcellular localization is regulated through phosphorylation."
OTUB1 is phosphorylated on Y26. 6 / 6
| 6

sparser
"Phosphorylation of OTUB1 at Tyr 26 stabilizes the mTORC1 component, Raptor."

sparser
"The non-receptor tyrosine kinase Src-mediated phosphorylation of OTUB1-Y26 plays a critical role in Raptor stabilization, whereas cathepsin K inhibitor (odanacatib; ODN) and knockdown (siRNA) induce Raptor destabilization."

sparser
"This study showed that cathepsin K inhibition activates SHP2, a tyrosine phosphatase, that dephosphorylates OTUB1 and destabilizes Raptor, whereas SHP2 deletion and pharmacological inhibition increase OTUB1-Y26 phosphorylation and Raptor expression."

sparser
"However, the mechanisms involved in cathepsin K inhibition-induced OTUB1-Y26 phosphorylation in Raptor stabilization have not been yet elucidated."

sparser
"Furthermore, non-receptor tyrosine kinases (Src and SRMS kinases) induced phosphorylation of OTUB1 at Y26, which stabilized Raptor."

sparser
"Interestingly, phosphorylation of OTUB1 at Y26 did not affect the stability of other OTUB1-targeted substrates."
OTUB1 is phosphorylated on S18. 4 / 4
1 | 3

sparser
"For example, the phosphorylation of OTUB1 at Ser 16 and Ser 18 , by unknown kinases, promotes cellular susceptibility to Yersinia enterocolitica and pseudotuberculosis infection ( xref )."

No evidence text available

sparser
"We set out to characterize the phosphorylation of OTUB1 at Ser 16 and Ser 18 in vitro and in vivo."

sparser
"Although not absolutely necessary, the phosphorylation of OTUB1 at Ser 18 makes OTUB1 a better substrate for CK2 to phosphorylate at Ser 16 in vitro."
OTUB1 is hydroxylated.
| 35
OTUB1 is hydroxylated. 10 / 21
| 21

sparser
"Hydroxylation of OTUB1 by FIH on asparagine residue N22 results in a restriction in its interactome, leading us to hypothesize a possible role for hydroxylation in substrate targeting."

sparser
"Mutation of the OTUB1 Hydroxylation Site Regulates its Interactome."

sparser
"In our study, we found that N22, the site of OTUB1 hydroxylation by FIH, is located in a region of the protein that may be key to determining its activity."

sparser
"Overall, these results demonstrate that mutations of the OTUB1 hydroxylation site and of its FIH interaction site affect FIH-OTUB1 HD levels and that both are necessary for optimal interaction and HD formation."

sparser
"While OTUB1 enzymatic activity was dispensable for HD formation, the OTUB1 hydroxylation site as well as the FIH interaction site were necessary."

sparser
"Expanding on their previous finding that OTUB1 is hydroxylated ( xref ), Scholz and colleagues determined the factor inhibiting HIF hydroxylates OTUB1 at N22 and that this restricts the OTUB1 interactome ( xref )."

sparser
"For example, hydroxylation of OTUB1 by factor inhibiting HIF (FIH) leads to a profound change in the interaction of OTUB1 with proteins important in cellular metabolism. [ xref ] This alteration of OTUB1 interactome affects OTUB1 localization and substrate accessibility."

sparser
"The exception to this, is hydroxylation of OTUB1 by FIH, where mutation of the acceptor asparagine changes the interactome of OTUB1 and gives rises to metabolic changes in the cell [ xref ]."

sparser
"We previously reported that the oxygen sensor FIH regulates cellular energy metabolism through hydroxylation of OTUB1 [ xref ]."

sparser
"Possibly, HIF1AN’s impact on metabolism involves asparagine hydroxylation of the deubiquitinase OTUB1 that seems to suppress binding to many proteins related to metabolic processes [ xref ]."
OTUB1 is hydroxylated on N22. 10 / 14
| 14

sparser
"We next investigated the impact of the hydroxylation of N22 on the OTUB1 protein."

sparser
"In order to investigate if the observed OTUB1 N22 hydroxylation was regulated by physiologically relevant changes in the cellular microenvironment, we incubated HEK293 cells overexpressing both OTUB1 and FIH in 0.2% oxygen for 8 h with and without subsequent re-oxygenation at 21% oxygen for one additional hour."

sparser
"For example, when OTUB1 is hydroxylated at the Asn22 residue by factor inhibiting HIF (FIH), the interactome and substrates of OTUB1 are elevated, particularly its interaction with metabolism-associated proteins."

sparser
"The analysis of the OTUB1 N22 hydroxylation levels by mass spectrometry showed a significant reduction of OTUB1 N22 hydroxylation in hypoxia which was significantly reversed by re-oxygenation ( xref )."

sparser
"Overall, these data demonstrate that the hydroxylation of OTUB1 at N22 does not impact on OTUB1 protein stability."

sparser
"OTUB1 N22 Hydroxylation Does Not Affect its Protein Stability."

sparser
"We next investigated whether OTUB1 hydroxylation on N22 is FIH-dependent."

sparser
"We next investigated possible functional consequences of OTUB1 hydroxylation on N22."

sparser
"Expanding on their previous finding that OTUB1 is hydroxylated ( xref ), Scholz and colleagues determined the factor inhibiting HIF hydroxylates OTUB1 at N22 and that this restricts the OTUB1 interactome ( xref )."

sparser
"Ongoing studies are investigating whether hydroxylation of wild-type OTUB1 at N22 impacts on its (non-)canonical activity."
OTUB1 is ubiquitinated.
| 5
OTUB1 is ubiquitinated. 4 / 4
| 4

sparser
"RNF126 promotes ubiquitination of OTUB1, leading to reduced deubiquitinating activity towards TRAF3."

sparser
"Using the same assay, we confirmed that ubiquitination of PGAM5 and OTUB1 was dependent on E4B—their ubiquitination was significantly decreased in shE4B cells, and the ubiquitination level was restored by overexpressing E4B in shE4B cells ( xref )."

sparser
"Suppression of OTUB1 with two different shRNAs resulted in increased levels of NRAS monoubiquitination (Fig  xref A), whereas overexpression of wt OTUB1 almost completely abolished ubiquitination of RAS proteins (Fig  xref B–D)."

sparser
"We verified that kinase MAPK3, methyltransferase PRMT1, protein phosphatases PPP3CA and PGAM5, and deubiquitinase OTUB1 were ubiquitinated by E4B in vitro and in HEK293 cells ( xref – xref )."
OTUB1 is ubiquitinated on C91. 1 / 1
| 1

sparser
"Moreover, RNF126 promotes ubiquitination of OTUB1 on cysteine 91, which is reportedly required for its catalytic activity."
OTUB1 is methylated.
| 1
OTUB1 is methylated on K122. 1 / 1
| 1

sparser
"Here, we demonstrate that SET7, a lysine monomethylase, directly interacts with OTUB1 to catalyze OTUB1 methylation at lysine 122."
UBE2N affects OTUB1
1 12 | 34 25
1 12 | 32 25

reach
"Furthermore, the atomic level information of the interaction between human OTUB1 and UBC13 has not been reported."

reach
"OTUB1 binding to Ubc13 interferes with the interactions of donor ubiquitin and TRAF6 with the E2 enzyme, leading to the inhibition of Lys63 linked polyubiquitin chain synthesis in DNA damage response XREF_BIBR."

reach
"Another obvious inhibitory feature of OTUB1 binding to Ubc13 ~ Ub (or E2 ~ Ub) is that it occludes and overlaps with the RING E3 binding site."

reach
"The K d for binding of UBE2N to OTUB1 was 8.1 muM, which is consistent with previous studies that measured a K d of 7.04 muM using fluorescence polarization 31 and K d of 8.9 muM measured by surface plasmon resonance using a GST-OTUB1 fusion 29."

sparser
"OTUB1 binding to Ubc13 interferes with the interactions of donor ubiquitin and TRAF6 with the E2 enzyme, leading to the inhibition of Lys63-linked polyubiquitin chain synthesis in DNA damage response xref ."

sparser
"Cellular roles have been identified for the interaction of OTUB1 with UBE2N and members of the UBE2D family, but not for interactions with UBE2E E2 enzymes."

No evidence text available

reach
"Like TARF6 and CHIP, OTUB1 binds to Ubc13 through the alpha1 helix, L1 and L2 loops (XREF_FIG)."

No evidence text available

No evidence text available
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
| 1

reach
"27,28 OTUB1 interacts with Ubc13 through the H1 helix and S3-S4 and 3 10 -1-H2 loops, which are the same regions involved in OspI binding."
OTUB1 affects E2
| 4 57 23
OTUB1 binds E2.
| 29 18
| 28 18

sparser
"These parameters provide a framework for investigating the diverse in vivo roles of OTUB1-E2 complexes."

reach
"OTUB1 binds to a subset of E2 ubiquitin conjugating enzymes and inhibits their activity by trapping the E2 ~ ubiquitin thioester and preventing ubiquitin transfer."

sparser
"Formation of both active and repressive OTUB1-E2 complexes are governed, in part, by the intrinsic affinity of OTUB1 for each of its E2 partners."

sparser
"Moreover, it is possible that responses to a variety of stresses cause transient changes in the E2:E2~Ub ratio, which could shift the balance of OTUB1:E2 complexes from a repressed to active state, or vice versa."

reach
"OTUB1 binding to the charged E2 ~ Ub is allosterically regulated by an additional free ubiquitin monomer that binds to the OTUB1 distal ubiquitin binding site, triggering conformational changes that favor binding of the UBC13 ~ Ub donor ubiquitin in the OTUB1 proximal site 13."

sparser
"When the E2 partners of OTUB1 are not charged with ubiquitin, E2 binding to OTUB1 stimulates its Lys-48–specific deubiquitinating activity ( xref ), although the physiological role of this stimulation remains to be shown."

reach
"Higher concentrations of E2 substantially rescued this inhibition suggesting that binding of OTUB1 to E2 is likely to be the rate limiting step in the inhibition of polyubiquitylation of SMAD3 (XREF_FIG)."

sparser
"Remarkably, depletion of OTUB1 restored a pharmacologically disabled DSB response, indicating that targeting the OTUB1-E2 interaction might be an attractive route for the development of agents that bolster DSB repair."

sparser
"These observations suggested a potential network of cross-regulation in cells in which OTUB1:E2 complexes have different enzymatic activity depending on whether or not the E2 enzyme is charged with ubiquitin xref ."

reach
"The ability of OTUB1 to bind to E2 enzymes and inhibit ubiquitin transfer in a manner that does not depend on OTUB1 catalytic activity was first discovered in studies of DNA damage signaling, in which OTUB1 inhibits the E2, UBE2N/UBC13 (17)."
OTUB1 binds E2 and Lys48. 1 / 1
| 1

reach
"OTUB1 bound to an uncharged E2 actively cleaves Lys48 polyubiquitin, with the E2 lowering the K M for the Lys48 polyubiquitin substrate through interactions between the OTUB1 N-terminus and the E2 (XREF_FIG)."
OTUB1 inhibits E2.
| 4 25 5
OTUB1 inhibits E2. 10 / 34
| 4 25 5

reach
"The general features of the inhibition mechanism explain how OTUB1 inhibits other E2 enzymes in a non catalytic manner."

reach
"Further characterization of this mechanism demonstrated that OTUB1 directly binds and consequently inhibits a related subclass of E2 enzymes that include UBC13, the only known E2 that cooperates with RNF168 during the DNA damage response [23], [195]."

reach
"However, its inhibitory effect was higher than that of an OTUB1 N-terminal deletion mutant that does not inhibit the E2 activity of UBC13 (Nakada et al., 2010)."

reach
"In order to determine the structural basis for OTUB1 inhibition of E2 enzymes, and how ubiquitin allosterically regulates OTUB1 activity, we determined the structure of Caenorhabditis elegans OTUB1 (ceOTUB1) bound to human UBC13 at 1.8 A resolution (XREF_FIG), and a 2.35 A resolution quaternary complex structure containing ceOTUB1, Ubal and a UBC13 DCA ~ Ub conjugate generated with Ub G76C."

reach
"Resulting changes in substrate ubiquitination or downstream signaling pathways in cells expressing the mutant DUB are generally assumed to be due to the absence of deubiquitinating activity, with the notable exceptions of OTUB1, which inhibits E2 enzymes by a mechanism independent of catalytic activity 15, 16, 17 and OTUD4, which serves as a scaffold for USP enzymes 18."

reach
"In support of the possibility that the growth inhibition in yeast was due to E2 inhibition by OTUB1, we found that the OTUB1 DeltaN mutant, which is unable to inhibit E2 enzymes, failed to block growth (XREF_FIG)."

reach
"To investigate whether the inhibition of E2 by OTUB1 was the rate limiting step in its inhibition of SMAD3 polyubiquitylation in vitro, we set up an in vitro ubiquitylation assay with ubiquitin, E1, varying concentrations of E2, E3 and recombinant human SMAD3 in the presence or absence of 0.5 muM GST-OTUB1 (XREF_FIG)."

eidos
"OTUB1 inhibits UBE2E1 autoubiquitination In previous studies in which OTUB1 has been shown to stabilize a substrate through its noncatalytic activity , OTUB1 inhibits the activity of an E2 that conjugates Lys-48-linked polyubiquitin to the substrate ( 21-26 ) ."

sparser
"The ability of OTUB1 to bind to E2 enzymes and inhibit ubiquitin transfer in a manner that does not depend on OTUB1 catalytic activity was first discovered in studies of DNA damage signaling, in which OTUB1 inhibits the E2, UBE2N/UBC13 ( xref )."

reach
"Here we describe structural and biochemical studies elucidating how OTUB1 inhibits UBC13 and other E2 enzymes."
OTUB1 activates E2.
| 3
OTUB1 activates E2. 3 / 3
| 3

reach
"OTUB1 activates RIG-I via a dual mechanism ofK48 polyubiquitin hydrolysis and formation of an E2 and repressive complex with UBCH5c."

reach
"Recently, several studies have described a non canonical mode of OTUB1 action in which OTUB1 inhibits the ubiquitylation of target proteins by binding to and inhibiting the E2 ubiquitin conjugating enzyme UBE2N (also known as UBC13) independent of its catalytic activity XREF_BIBR XREF_BIBR XREF_BIBR XREF_BIBR."

reach
"This and other studies have reported that OTUB1 inhibits ubiquitylation by binding to and inhibiting E2 enzymes XREF_BIBR XREF_BIBR XREF_BIBR XREF_BIBR XREF_BIBR."
E2 affects OTUB1
| 57 18
E2 binds OTUB1.
| 29 18
| 28 18

sparser
"These parameters provide a framework for investigating the diverse in vivo roles of OTUB1-E2 complexes."

reach
"OTUB1 binds to a subset of E2 ubiquitin conjugating enzymes and inhibits their activity by trapping the E2 ~ ubiquitin thioester and preventing ubiquitin transfer."

sparser
"Formation of both active and repressive OTUB1-E2 complexes are governed, in part, by the intrinsic affinity of OTUB1 for each of its E2 partners."

sparser
"Moreover, it is possible that responses to a variety of stresses cause transient changes in the E2:E2~Ub ratio, which could shift the balance of OTUB1:E2 complexes from a repressed to active state, or vice versa."

reach
"OTUB1 binding to the charged E2 ~ Ub is allosterically regulated by an additional free ubiquitin monomer that binds to the OTUB1 distal ubiquitin binding site, triggering conformational changes that favor binding of the UBC13 ~ Ub donor ubiquitin in the OTUB1 proximal site 13."

sparser
"When the E2 partners of OTUB1 are not charged with ubiquitin, E2 binding to OTUB1 stimulates its Lys-48–specific deubiquitinating activity ( xref ), although the physiological role of this stimulation remains to be shown."

reach
"Higher concentrations of E2 substantially rescued this inhibition suggesting that binding of OTUB1 to E2 is likely to be the rate limiting step in the inhibition of polyubiquitylation of SMAD3 (XREF_FIG)."

sparser
"Remarkably, depletion of OTUB1 restored a pharmacologically disabled DSB response, indicating that targeting the OTUB1-E2 interaction might be an attractive route for the development of agents that bolster DSB repair."

sparser
"These observations suggested a potential network of cross-regulation in cells in which OTUB1:E2 complexes have different enzymatic activity depending on whether or not the E2 enzyme is charged with ubiquitin xref ."

reach
"The ability of OTUB1 to bind to E2 enzymes and inhibit ubiquitin transfer in a manner that does not depend on OTUB1 catalytic activity was first discovered in studies of DNA damage signaling, in which OTUB1 inhibits the E2, UBE2N/UBC13 (17)."
OTUB1 binds E2 and Lys48. 1 / 1
| 1

reach
"OTUB1 bound to an uncharged E2 actively cleaves Lys48 polyubiquitin, with the E2 lowering the K M for the Lys48 polyubiquitin substrate through interactions between the OTUB1 N-terminus and the E2 (XREF_FIG)."
E2 activates OTUB1.
| 21
E2 activates OTUB1. 10 / 21
| 21

reach
"The effect of E2 enzymes in lowering the K M of OTUB1 for substrate suggests that the binding of an E2 partner increases the affinity of OTUB1 for K48 diubiquitin."

reach
"Since the N-terminal residues of OTUB1 that precede the OTU domain form a proximal ubiquitin binding helix that plays an essential role in E2 inhibition, we asked whether E2 stimulation of OTUB1 activity similarly requires the OTUB1 N-terminus."

reach
"No difference in stimulation was observed in cleavage of di-, tri- and tetraubiquitin substrates (XREF_SUPPLEMENTARY), indicating that E2 stimulation of OTUB1 DUB activity is independent of polyubiquitin chain length."

reach
"Importantly, the fact that a substantial proportion of the E2 partners of OTUB1 are uncharged is consistent with a role for E2 stimulation of OTUB1 in the cell."

reach
"Our structural and biochemical studies showed how E2 enzymes stimulate the DUB activity of OTUB1."

reach
"These K d values are comparable to the K M values of OTUB1 in the presence of these E2 partners (XREF_FIG), indicating that all E2 enzymes stimulate OTUB1 by increasing the affinity of the DUB for its K48 diubiquitin substrate."

reach
"The same E2 enzymes, when uncharged, can stimulate the DUB activity of OTUB1 in vitro, although the importance of OTUB1 stimulation in vivo remains unclear."

reach
"EC 50 s for E2 stimulation of OTUB1 match intracellular concentrations."

reach
"Since only uncharged E2 stimulates OTUB1 DUB activity while charged E2 ~ Ub represses OTUB1 under normal cellular concentrations of free ubiquitin, the relative proportion of charged versus uncharged E2s must be critical determinants of whether OTUB1-E2 complexes function as active DUBs in the cell."

reach
"Thus, the same E2 enzymes that are inhibited by OTUB1 when the E2 is charged with ubiquitin can stimulate OTUB1 when uncharged."
E2 inhibits OTUB1.
| 5
E2 inhibits OTUB1. 5 / 5
| 5

reach
"Since only uncharged E2 stimulates OTUB1 DUB activity while charged E2 ~ Ub represses OTUB1 under normal cellular concentrations of free ubiquitin, the relative proportion of charged versus uncharged E2s must be critical determinants of whether OTUB1-E2 complexes function as active DUBs in the cell."

reach
"Since estimates of cellular free ubiquitin concentrations range from 4 - 20 microM, this would suggest that E2 ~ Ub conjugates would repress OTUB1 activity unless cellular stresses significantly reduced the availability of free ubiquitin."

reach
"As was previously shown for UBE2D2 37, all E2 partners tested lowered the K M of OTUB1 for its substrate (XREF_FIG), with no effect on k cat."

reach
"The ternary E2 ~ Ub and OTUB1/Ub complex inhibits both ubiquitin discharge from the E2 ~ Ub intermediate and the DUB activity of OTUB1 [XREF_BIBR, XREF_BIBR]."

reach
"The E2 mediated conformational change decreases the K m of OTUB1 for diUb by over 35-fold, thereby enhancing the rate of OTUB1 dependent polyUb degradation 2."
E2 ubiquitinates OTUB1.
| 2
E2 leads to the ubiquitination of OTUB1. 2 / 2
| 2

reach
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin binding helix."

reach
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 enzyme stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin binding helix."
OTUB1 affects FOXM1
7 1 | 1 30 16
OTUB1 binds FOXM1.
7 | 8 16
7 | 8 16

sparser
"We next examined whether OTUB1 binding is associated with the suppression of FOXM1 ubiquitination and downregulation in the epirubicin-sensitive and -resistant MCF-7 cells."

sparser
"OTUB1 interacts with FOXM1 in breast cancer cells."

No evidence text available

sparser
"The result showed that epirubicin treatment caused a prominent decrease in FOXM1 levels, which was associated with decreased interactions with OTUB1 in the sensitive MCF-7 cells."

sparser
"Mechanistically, LINC00857 bound simultaneously to FOXM1 and to the deubiquitinase OTUB1, thereby serving as a protein scaffold and enhancing the interaction between FOXM1 and OTUB1, which inhibits FOXM1 degradation through the ubiquitin-proteasome pathway."

sparser
"This induction in Lys48-linked polyubiquitination by epirubicin in MCF-7 cells was also associated with a decline in the FOXM1-OTUB1 interaction and FOXM1 expression in the MCF-7 cells."

sparser
"Epirubicin treatment caused a rapid decrease in the FOXM1-OTUB1 interaction in the sensitive MCF-7 cells but the levels of FOXM1-OTUB1 complexes were largely maintained or increased in the resistant MCF-7Epi R cells ( xref ; also see Figure 3)."

sparser
"These results are consistent with the notion that OTUB1 binds to FOXM1 and limits its ubiquitination and degradation in MCF-7 breast cancer cells."

No evidence text available

sparser
"Given that OTUB1 is a deubiquitinating enzyme that removes polyubiquitin chains and promotes stability of target proteins xref - xref , these data suggest that OTUB1 binds to FOXM1 and modulates its ubiquitination and degradation in response to genotoxic treatment in breast cancer."
OTUB1 activates FOXM1.
| 1 5
OTUB1 activates FOXM1. 5 / 9
| 1 4

reach
"This finding was interesting as OTUB1 inhibits the degradation of FOXM1 transcription factor, typically upregulated and overexpressed in aggressive therapy resistant breast cancer."

reach
"Our data show that WT OTUB1, but not the OTUB1 (C91S) catalytic dead mutant, can enhance the stability of FOXM1 in response to epirubicin in MCF-7 cells, suggesting that the deubiquitinase activity is required for the degradation of FOXM1."

eidos
"Mechanistically , knockdown of OTUB1 down-regulated FOXM1 expression by promoting its ubiquitination ."

reach
"The fact that OTUB1 specifically targets FOXM1 also supports the fact that FOXM1 is ubiquitinated by K48-linkage chains."

reach
"OTUB1 enhances FOXM1 stability in response to epirubicin treatment."
OTUB1-C91S activates FOXM1. 1 / 1
| 1

reach
"Our data show that WT OTUB1, but not the OTUB1 (C91S) catalytic dead mutant, can enhance the stability of FOXM1 in response to epirubicin in MCF-7 cells, suggesting that the deubiquitinase activity is required for the degradation of FOXM1."
OTUB1 inhibits FOXM1.
| 2
OTUB1 inhibits FOXM1. 2 / 7
| 2

reach
"Importantly, knockdown of OTUB1 by siRNA resulted in an increase in turnover of FOXM1 in MCF-7 cells treated with the protein synthesis inhibitor cycloheximide, whereas overexpression of WT OTUB1, but not the OTUB1 (C91S) mutant, significantly enhances the half-life of FOXM1."

reach
"Together, these results suggest that the suppression of FOXM1 degradation by OTUB1 in response to epirubcin requires its deubiquitinating catalytic activity, further confirming that FOXM1 is a novel target of the deubiquitinase OTUB1."
OTUB1 deubiquitinates FOXM1.
1 | 6
OTUB1 deubiquitinates FOXM1. 6 / 6
1 | 5

reach
"29 We have shown previously that OTUB1 can specifically limit FOXM1 polyubiquitination and its degradation, through its deubiquitinase enzymatic activity."

reach
"Conversely, the invitro deubiquitination assays revealed that both OTUB1 (WT) and OTUB1 (D88A), but not OTUB1 (C91A), could efficiently deubiquitinate FOXM1 (XREF_FIG C, invitro Deub, lanes 5-8), as expected."

reach
"Taken together, the results provided strong evidence that OTUB1 suppresses FOXM1 ubiquitination and degraduation."

"OTUB1-catalyzed deubiquitination of FOXM1 facilitates tumor progression and predicts a poor prognosis in ovarian cancer"

reach
"Moreover, OTUB1 can deubiquitinate and stabilize the forkhead transcription factor FOXM1, which promotes DNA damage response and genotoxic drug resistance in breast cancer."

reach
"OTUB1 mediates the deubiquitination of FOXM1 to promote renal cancer tumor progression (Zhou et al., 2020)."
OTUB1-C91A deubiquitinates FOXM1. 1 / 1
| 1

reach
"Conversely, the invitro deubiquitination assays revealed that both OTUB1 (WT) and OTUB1 (D88A), but not OTUB1 (C91A), could efficiently deubiquitinate FOXM1 (XREF_FIG C, invitro Deub, lanes 5-8), as expected."
OTUB1 ubiquitinates FOXM1.
| 3
OTUB1 leads to the ubiquitination of FOXM1. 3 / 5
| 3

reach
"XREF_BIBR, XREF_BIBR However, we demonstrate here that OTUB1 suppresses the ubiquitination and degradation of FOXM1 through its deubiquitinase enzymatic activity."

reach
"Collectively, these data suggest that OTUB1 limits the ubiquitination and degradation of FOXM1 in breast cancer and has a key role in genotoxic agent resistance."

reach
"OTUB1 inhibits the ubiquitination and degradation of FOXM1 in breast cancer and epirubicin resistance."
OTUB1 increases the amount of FOXM1.
| 5
OTUB1 increases the amount of FOXM1. 5 / 5
| 5

reach
"To investigate the idea that OTUB1 modulates FOXM1 expression further, we examined the effects of silencing OTUB1 and FOXM1 on the expression of endogenous OTUB1 and FOXM1 protein in MCF-7 cells."

reach
"Mechanistically, knockdown of OTUB1 down-regulated FOXM1 expression by promoting its ubiquitination."

reach
"Given our previous finding that genotoxic agents cause FOXM1 SUMOylation, ubiquitination and degradation, these observations led us to hypothesize that OTUB1 promotes FOXM1 expression at the posttranslational level to potentiate genotoxic agent resistance."

reach
"FOXM1 expression reduced upon OTUB1 depletion by siRNA and increased with OTUB1 overexpression in MCF-7 cells, arguing that OTUB1 positively regulates FOXM1 expression."

reach
"The results showed that in MCF-7 cells OTUB1 depletion culminated in the downregulation of FOXM1, but not vice versa (XREF_FIG), suggesting that OTUB1 positively regulates FOXM1 expression."
OTUB1 decreases the amount of FOXM1.
| 1
OTUB1 decreases the amount of FOXM1. 1 / 3
| 1

reach
"Nevertheless, the correlations between the kinetics of OTUB1 and FOXM1 expression in the sensitive and resistant MCF-7 cells in response to DNA damaging agents support the notion that OTUB1 restricts the downregulation of FOXM1 expression in response to DNA damage and genotoxic agents."
OTUB1 affects SLC7A11
| 25 36
OTUB1 binds SLC7A11.
| 12 36
| 11 33

reach
"We found that OTUB1 directly interacts with SLC7A11 and regulates SLC7A11 stability in a p53 independent manner."

sparser
"CD44 overexpression significantly increased SLC7A11 protein levels and inhibited erastin-induced ferroptosis, but these effects were abrogated in OTUB1 KO cells, suggesting that CD44 regulates SLC7A11 protein stability and ferroptosis through OTUB1 and likely by promoting SLC7A11-OTUB1 interaction."

sparser
"Notably, overexpression of the cancer-stem-cell-marker CD44 enhanced the stability of SLC7A11 by promoting the interaction between SLC7A11 and OTUB1; the depletion of CD44 partially abrogated this interaction [ xref ]."

sparser
"In this study, Liu and colleagues showed that SLC7A11, OTUB1, and CD44 form a tri-protein complex and that CD44 promotes both SLC7A11-OTUB1 interaction and SLC7A11 protein stability."

sparser
"Finally, the SLC7A11-OTUB1 interaction is also regulated by CD44, a key marker of cancer stem cells."

reach
"To validate the in vivo interaction between SLC7A11 and OTUB1, we first transfected native H1299 cells with an OTUB1 expression vector in the presence or absence of a vector encoding Flag tagged SLC7A11."

sparser
"To further elucidate the significance of SLC7A11 stability control in tumorigenesis, we searched for potential regulation of the OTUB1-SLC7A11 interaction by other factors in human cancers."

sparser
"We found that OTUB1 directly interacts with SLC7A11 and regulates SLC7A11 stability in a p53-independent manner."

sparser
"Overexpression of the cancer stem cell marker CD44 increases the stability of SLC7A11 by promoting the interaction between SLC7A11 and OTUB1 [ xref ]."

sparser
"Recent studies have shown that overexpression of CD44 in cancer cells can promote the interaction between OTUB1 and SLC7A11 to enhance the stability of SLC7A11 (a subunit of glutamate-cystine antiporter system Xc-) and thereby inhibiting the ferroptosis, while the partial depletion of CD44 abolished this interaction ( xref )."
| 3

sparser
"By the same method, to avoid the issue that decreased SLC7A11 protein levels are the only factor for the decrease of the OTUB1-SLC7A11 interaction in CD44 knockdown cells (Input: lane 1 vs. lane 2, xref ), we normalized the amounts of SLC7A11 after immunoprecipitation (IP: lane 3 vs. lane 4, xref )."

sparser
"Since CD44 can stabilize SLC7A11 by enhancing the binding between SLC7A11 and OTUB1 ( xref ), it is very likely that CD44, OTUB1 and SLC7A11 form a stable three-protein complex that leads to more effective stabilization of SLC7A11."

sparser
"Thus, OTUB1 and CD44 interacts with the different domains of SLC7A11."
SLC7A11 binds OTUB1-C91A. 1 / 1
| 1

reach
"Moreover, as shown in XREF_SUPPLEMENTARY, co-immunoprecipitation assays revealed that both functional mutants OTUB1 (C91A) and OTUB1 (D88A) can interact with SLC7A11 although the binding affinity between OTUB1 (D88A) and SLC7A11 was apparently lower than the one between OTUB1 (C91A) and SLC7A11."
OTUB1 activates SLC7A11.
| 5
OTUB1 activates SLC7A11. 5 / 5
| 5

reach
"Consistent with the role of a DUB in regulating protein stability, OTUB1 overexpression resulted in reduced SLC7A11 ubiquitination and increased SLC7A11 protein half-life and steady protein levels; conversely, OTUB1 deletion in a variety of cancer cell lines resulted in a significant decrease in SLC7A11 protein levels."

reach
"Taken together, although the precise mechanism by which OTUB1 induces SLC7A11 stabilization requires further elucidation, it is very likely that the binding between OTUB1 and SLC7A11 as well as OTUB1 's ability of inhibiting E2 conjugating enzymes recruited by the unknown E3 ligase contribute to SLC7A11 stabilization induced by OTUB1."

reach
"Evidence suggests that the deubiquitinase OTUB1, usually overexpressed in cancers, replicates the ferroptosis process and promotes tumor development by stabilizing the cystine transporter SLC7A11 (Gan, 2019)."

reach
"For example, in a non neuronal setting, induction of ferroptosis with the small molecule erastin is suppressed by the ubiquitin ligase NEDD4 [XREF_BIBR], whilst the DUBs OTUB1 and USP7 promote ferroptosis by stabilising the mediators SLC7A11 and p53, respectively [XREF_BIBR, XREF_BIBR]."

reach
"As shown in XREF_FIG, the stability of SLC7A11 was effectively rescued by OTUB1 (C91A) but not by OTUB1 (D88A), suggesting that OTUB1 promotes SLC7A11 stabilization independent of its deubiquitinase activity."
OTUB1 inhibits SLC7A11.
| 4
| 4

reach
"Like CD44, OTUB1 is also overexpressed in human cancers and acts to suppress ferroptosis by promoting SLC7A11 stability."

reach
"As shown in XREF_FIG, the steady-state levels of SLC7A11 in OTUB1 depleted cells were significantly restored upon treatment with the MG132 proteasome inhibitor (lane 4 vs. lane 2), indicating that OTUB1 depletion promotes SLC7A11 degradation in a proteasome dependent manner."

reach
"Furthermore, Co-Immunoprecipitation and Duolink ® in situ PLA confirmed that OTUB1, a deubiquitylating enzyme, interacted with SLC7A11 and solasonine to enhance ubiquitinated degradation of SLC7A11 in PANC-1 and CFPAC-1 cells."

reach
"Moreover, depletion of endogenous OTUB1 diminishes SLC7A11 activity in human cancer cells."
OTUB1 increases the amount of SLC7A11.
| 4
OTUB1 increases the amount of SLC7A11. 4 / 4
| 4

reach
"OTUB1 inactivation promotes ferroptosis in human cancer cells primarily by down-regulating SLC7A11 levels."

reach
"Together, these data suggest that OTUB1 inactivation promotes ferroptosis in human cancer cells primarily by down-regulating SLC7A11 levels."

reach
"In particular, our results show that (i) OTUB1 is a bona fide binding partner of SLC7A11 both in vitro and in vivo; (ii) OTUB1 acts as a major regulator for SLC7A11 activity in human cancer cells; (iii) OTUB1 inactivation promotes ferroptosis in human cancer cells primarily by down-regulating SLC7A11 levels; (iv) OTUB1 is overexpressed in human cancers and the OTUB1-SLC7A11 interaction is critical for tumor growth; (v) The OTUB1-SLC7A11 interaction is tightly regulated by CD44 in human cancer cells."

reach
"OTUB1 directly interacted with and stabilized SLC7A11; conversely, OTUB1 knockdown diminished SLC7A11 levels in cancer cells."
OTUB1 affects TP53
5 1 | 25 14
OTUB1 activates TP53.
| 12 6
OTUB1 activates TP53. 10 / 26
| 12 6

reach
"Overexpression of OTUB1 induces p53 dependent apoptosis whereas its knockdown attenuates p53 activation."

sparser
"For example, USP7 modulates the stability of both p53 and MDM2, and maintains the level of p53 ubiquitylation ( xref , xref ); USP2 affects the stability of MDM2 ( xref ); Otub1 inhibits p53 ubiquitination and activates p53 in cells ( xref ); USP10 regulates the location and stability of p53, and stabilize both mutated and wild-type p53, thereby having a dual role in tumorigenesis ( xref )."

sparser
"In response to DNA damaging agents, OTUB1 can stabilize and activate p53, leading to inhibition of cell proliferation and apoptosis xref , xref ."

reach
"OTUB1 modulates p53 stability by suppressing the conjugation between MDM2 and its E2 enzyme, UbcH5."

sparser
"As described in our previous work, Otub1 stabilizes and activates p53 and can induce apoptosis [ xref ]."

reach
"Interestingly, OTUB1 was recently shown to modulate p53 stability through inhibition of UbcH5."

reach
"Doxycycline induced expression of Otub1 in T-Rex-U2OS-Flag-Otub1 cells also drastically induced the levels of MDMX, as well as p53 and its target MDM2 in a time dependent manner."

reach
"Mitochondrial ROS scavengers prevented OTUB1-mediated p53 stabilization and Bax upregulation by ODN."

reach
"This non canonical mode of regulation was also reported when OTUB1 was shown to stabilize and activate p53 independent of catalytic activity [XREF_BIBR]."

reach
"Inhibition of cathepsin K sensitizes oxaliplatin-induced apoptotic cell death by Bax upregulation through OTUB1-mediated p53 stabilization in vitro and in vivo."
OTUB1 binds TP53.
5 | 1 6
5 | 1 6

No evidence text available

No evidence text available

sparser
"Biochemical interrogation into the OTUB1-P53 interaction revealed that OTUB1 binds to the DNA binding domain of P53 and P53 interacts with the N- and C-termini of OTUB1."

reach
"OTUB1, another cytoplasmic DUB, can directly interact with p53, but predominantly stabilises p53 indirectly in the cytoplasm, through a non catalytic mechanism."

sparser
"OTUB1 interacts with p53 and is required for p53 induction in response to DNA damage and p53-dependent apoptosis as well as cell growth inhibition."

sparser
"In detail, OTUB1 could directly bind P53 and deubiquitinates it, which may further improve the stability of P53 mediated by OTUB1, and thus influencing the response to DNA damage and the damaged-regulated autophagy induced by P53."

sparser
"OTUB1, another cytoplasmic DUB, can directly interact with p53, but predominantly stabilises p53 indirectly in the cytoplasm, through a non-catalytic mechanism."

No evidence text available

No evidence text available

sparser
"Specifically, OTUB1 can directly bind to TP53, thereby regulating the apoptosis process of cells and promoting the expression of apoptotic genes."
OTUB1 deubiquitinates TP53.
1 | 7
OTUB1 leads to the deubiquitination of TP53. 8 / 8
1 | 7

reach
"OTUB1 blocks p53 ubiquitylation by MDM2 by interacting with and inhibiting UbcH5, and E2 conjugating enzyme for MDM2."

reach
"Interestingly, Otub1 abrogates p53 ubiquitination and stabilizes and activates p53 in cells independently of its deubiquitinating enzyme activity."

reach
"For example, USP7 modulates the stability of both p53 and MDM2, and maintains the level of p53 ubiquitylation; USP2 affects the stability of MDM2; Otub1 inhibits p53 ubiquitination and activates p53 in cells; USP10 regulates the location and stability of p53, and stabilize both mutated and wild-type p53, thereby having a dual role in tumorigenesis."

reach
"However, Otub1 decreases p53 ubiquitination, stabilizing and activating p53 in cells via inhibition of UbcH5, a cognate ubiquitin-conjugating enzyme of MDM2."

reach
"Otub1, a DUB from the OTU-domain containing protease family abrogates p53 ubiquitination and stabilizes and activates p53 in cells independent of its deubiquitinating enzyme activity [XREF_BIBR]."

reach
"Examples for DUBs that might antagonize E4 dependent polyubiquitylation are USP47, a regulator of Base Excision Repair (BER) that controls DNA polymerase beta and OTUB1, which mediates DNA damage dependent deubiquitylation of p53 and MDM2 in the cytoplasm."

reach
"For example, USP7 regulates the stability of both p53 and Mdm2 and maintains p53 ubiquitination levels; 120 USP2 mediates the stability of Mdm2; 121 USP10 modulates p53 localization and stability; 122 OTUB1 abrogates p53 ubiquitination and activates p53."
OTUB1 inhibits TP53.
| 3
OTUB1 inhibits TP53. 2 / 4
| 2

reach
"This is particularly interesting when considering our observations that in prostate cancer cells, OTUB1 mediates the androgen inhibition of p53 through a mechanism that requires an intact OTUB1 catalytic motif and seems to be independent from MDM2 concentration changes."

reach
"Our results demonstrate that cathepsin K inhibition enhances oxaliplatin-induced apoptosis by increasing OTUB1 phosphorylation via CK2 activation, thereby promoting p53 stabilization, and hence upregulating Bax."
OTUB1-D88A inhibits TP53. 1 / 2
| 1

reach
"Overexpression of Otub1 (D88A) or ablation of endogenous Otub1 by siRNA markedly impaired p53 stabilization and activation in response to DNA damage."
OTUB1 increases the amount of TP53.
| 2
OTUB1 increases the amount of TP53. 1 / 2
| 1

reach
"These results suggest that Otub1 increases the cytoplasmic levels of both MDMX and p53."
Modified OTUB1 increases the amount of TP53. 1 / 1
| 1

reach
"As shown in Figure XREF_FIG, cell fractionation assays revealed that Otub1 expression not only significantly induced the nuclear levels of p53 and MDMX, but also induced the levels of cytoplasmic MDMX and p53 (lane 4, Figure XREF_FIG)."
OTUB1 phosphorylates TP53.
| 2
OTUB1 phosphorylates TP53. 1 / 1
| 1

sparser
"Knockdown of MDMX reduced Otub1-induced p53 phosphorylation at S46, which was shown to be critical for p53's mitochondria function, and apoptotic activity."
OTUB1 phosphorylates TP53 on S46. 1 / 1
| 1

sparser
"Additionally, by stabilizing MDMX expression, OTUB1 enhances p53 phosphorylation at S46 and promotes the mitochondria-mediated apoptotic pathway xref ."
SLC7A11 affects OTUB1
| 12 36
| 11 33

reach
"We found that OTUB1 directly interacts with SLC7A11 and regulates SLC7A11 stability in a p53 independent manner."

sparser
"CD44 overexpression significantly increased SLC7A11 protein levels and inhibited erastin-induced ferroptosis, but these effects were abrogated in OTUB1 KO cells, suggesting that CD44 regulates SLC7A11 protein stability and ferroptosis through OTUB1 and likely by promoting SLC7A11-OTUB1 interaction."

sparser
"Notably, overexpression of the cancer-stem-cell-marker CD44 enhanced the stability of SLC7A11 by promoting the interaction between SLC7A11 and OTUB1; the depletion of CD44 partially abrogated this interaction [ xref ]."

sparser
"In this study, Liu and colleagues showed that SLC7A11, OTUB1, and CD44 form a tri-protein complex and that CD44 promotes both SLC7A11-OTUB1 interaction and SLC7A11 protein stability."

sparser
"Finally, the SLC7A11-OTUB1 interaction is also regulated by CD44, a key marker of cancer stem cells."

reach
"To validate the in vivo interaction between SLC7A11 and OTUB1, we first transfected native H1299 cells with an OTUB1 expression vector in the presence or absence of a vector encoding Flag tagged SLC7A11."

sparser
"To further elucidate the significance of SLC7A11 stability control in tumorigenesis, we searched for potential regulation of the OTUB1-SLC7A11 interaction by other factors in human cancers."

sparser
"We found that OTUB1 directly interacts with SLC7A11 and regulates SLC7A11 stability in a p53-independent manner."

sparser
"Overexpression of the cancer stem cell marker CD44 increases the stability of SLC7A11 by promoting the interaction between SLC7A11 and OTUB1 [ xref ]."

sparser
"Recent studies have shown that overexpression of CD44 in cancer cells can promote the interaction between OTUB1 and SLC7A11 to enhance the stability of SLC7A11 (a subunit of glutamate-cystine antiporter system Xc-) and thereby inhibiting the ferroptosis, while the partial depletion of CD44 abolished this interaction ( xref )."
| 3

sparser
"By the same method, to avoid the issue that decreased SLC7A11 protein levels are the only factor for the decrease of the OTUB1-SLC7A11 interaction in CD44 knockdown cells (Input: lane 1 vs. lane 2, xref ), we normalized the amounts of SLC7A11 after immunoprecipitation (IP: lane 3 vs. lane 4, xref )."

sparser
"Since CD44 can stabilize SLC7A11 by enhancing the binding between SLC7A11 and OTUB1 ( xref ), it is very likely that CD44, OTUB1 and SLC7A11 form a stable three-protein complex that leads to more effective stabilization of SLC7A11."

sparser
"Thus, OTUB1 and CD44 interacts with the different domains of SLC7A11."
SLC7A11 binds OTUB1-C91A. 1 / 1
| 1

reach
"Moreover, as shown in XREF_SUPPLEMENTARY, co-immunoprecipitation assays revealed that both functional mutants OTUB1 (C91A) and OTUB1 (D88A) can interact with SLC7A11 although the binding affinity between OTUB1 (D88A) and SLC7A11 was apparently lower than the one between OTUB1 (C91A) and SLC7A11."
FOXM1 affects OTUB1
7 | 11 16
FOXM1 binds OTUB1.
7 | 8 16
7 | 8 16

sparser
"We next examined whether OTUB1 binding is associated with the suppression of FOXM1 ubiquitination and downregulation in the epirubicin-sensitive and -resistant MCF-7 cells."

sparser
"OTUB1 interacts with FOXM1 in breast cancer cells."

No evidence text available

sparser
"The result showed that epirubicin treatment caused a prominent decrease in FOXM1 levels, which was associated with decreased interactions with OTUB1 in the sensitive MCF-7 cells."

sparser
"Mechanistically, LINC00857 bound simultaneously to FOXM1 and to the deubiquitinase OTUB1, thereby serving as a protein scaffold and enhancing the interaction between FOXM1 and OTUB1, which inhibits FOXM1 degradation through the ubiquitin-proteasome pathway."

sparser
"This induction in Lys48-linked polyubiquitination by epirubicin in MCF-7 cells was also associated with a decline in the FOXM1-OTUB1 interaction and FOXM1 expression in the MCF-7 cells."

sparser
"Epirubicin treatment caused a rapid decrease in the FOXM1-OTUB1 interaction in the sensitive MCF-7 cells but the levels of FOXM1-OTUB1 complexes were largely maintained or increased in the resistant MCF-7Epi R cells ( xref ; also see Figure 3)."

sparser
"These results are consistent with the notion that OTUB1 binds to FOXM1 and limits its ubiquitination and degradation in MCF-7 breast cancer cells."

No evidence text available

sparser
"Given that OTUB1 is a deubiquitinating enzyme that removes polyubiquitin chains and promotes stability of target proteins xref - xref , these data suggest that OTUB1 binds to FOXM1 and modulates its ubiquitination and degradation in response to genotoxic treatment in breast cancer."
FOXM1 activates OTUB1.
| 3
FOXM1 activates OTUB1. 3 / 4
| 3

reach
"18 In here, we not only show that the potent oncogene FOXM1 is a target of OTUB1 but also present evidence to demonstrate that the oncogenic and genotoxic functions of OTUB1 depend on the expression of a functional FOXM1, suggesting that OTUB1 promotes cell proliferation and epirubicin resistance predominantly through targeting FOXM1."

reach
"Together, these results suggest that the suppression of FOXM1 degradation by OTUB1 in response to epirubcin requires its deubiquitinating catalytic activity, further confirming that FOXM1 is a novel target of the deubiquitinase OTUB1."

reach
"These results indicate that FOXM1 is a key target of OTUB1 and that FOXM1 mediates the oncogenic and DNA damage resistant functions of OTUB1."
OTUB1 affects UBE2E1
1 2 | 6 22 6
OTUB1 inhibits UBE2E1.
| 4 4 3
| 4 4 3

eidos
"Although it has been demonstrated that UBE2E1 can stimulate OTUB1 DUB activity ( 28 ) , it has not been shown whether OTUB1 inhibits UBE2E1 in the manner observed for UBE2N / UBC13 , UBE2D2 , and UBE2D3 ( 17 , 18 , 20 ) ."

eidos
"To test the hypothesis that OTUB1 may directly inhibit UBE2E1 , we assayed the autoubiquitinating activity of UBE2E1 in the presence and absence of OTUB1 in vitro ."

reach
"These results confirm that OTUB1 can noncatalytically inhibit UBE2E1 as has been observed for UBE2N and UBCH5 isoforms (17–20)."

sparser
"These results confirm that OTUB1 can noncatalytically inhibit UBE2E1 as has been observed for UBE2N and UBCH5 isoforms ( xref xref xref )."

eidos
"These results confirm that OTUB1 can noncatalytically inhibit UBE2E1 as has been observed for UBE2N and UBCH5 isoforms ( 17-20 ) ."

reach
"Although it has been demonstrated that UBE2E1 can stimulate OTUB1 DUB activity (28), it has not been shown whether OTUB1 inhibits UBE2E1 in the manner observed for UBE2N/UBC13, UBE2D2, and UBE2D3 (17, 18, 20)."

reach
"Recently, UBE2E1 was shown to autoubiquitinate itself in vitro in the presence or absence of the E3 ligase, RNF4 (30, 31), raising the possibility that OTUB1 may stabilize UBE2E1 by preventing autoubiquitination.To test the hypothesis that OTUB1 may directly inhibit UBE2E1, we assayed the autoubiquitinating activity of UBE2E1 in the presence and absence of OTUB1 in vitro."

eidos
"We show that OTUB1 suppresses UBE2E1 autoubiquitination in vitro and in cells , thereby preventing UBE2E1 from being targeted to the proteasome for degradation ."

sparser
"Although it has been demonstrated that UBE2E1 can stimulate OTUB1 DUB activity ( xref ), it has not been shown whether OTUB1 inhibits UBE2E1 in the manner observed for UBE2N/UBC13, UBE2D2, and UBE2D3 ( xref , xref , xref )."

sparser
"To test the hypothesis that OTUB1 may directly inhibit UBE2E1, we assayed the autoubiquitinating activity of UBE2E1 in the presence and absence of OTUB1 in vitro ."
OTUB1 deubiquitinates UBE2E1.
2 | 7
OTUB1 leads to the deubiquitination of UBE2E1. 9 / 9
2 | 7

reach
"We show that OTUB1 suppresses UBE2E1 autoubiquitination in vitro and in cells, thereby preventing UBE2E1 from being targeted to the proteasome for degradation."

reach
"We show here that OTUB1 noncatalytically inhibits UBE2E1 autoubiquitination in vitro in either the presence or absence of E3 ligase (Fig. 4)."

"OTUB1 non-catalytically stabilizes the E2 ubiquitin-conjugating enzyme UBE2E1 by preventing its autoubiquitination"

reach
"Although it is not known whether RNF4 stimulates UBE2E1 in vivo, our in vitro results raised the interesting possibility that OTUB1 could inhibit UBE2E1 autoubiquitination in cells, thereby accounting for the ability of OTUB1 to prevent UBE2E1 from being targeted to the proteasome."

reach
"Catalytically inactive OTUB1 completely inhibits UBE2E1 ubiquitination activity in both the presence and absence of E3 (Fig. 4, top panel)."

reach
"A recent study showed that OTUB1 also prevents autoubiquitylation of UBE2E1, thereby rescuing the E2 from proteasomal degradation 35."

"We find that OTUB1 depletion dramatically destabilizes the E2-conjugating enzyme UBE2E1 (UBCH6) in both mouse and human OTUB1 knockout cell lines."

reach
"OTUB1 inhibits UBE2E1 autoubiquitination."

reach
"OTUB1 inhibits auto-monoubiquitylation of UBE2E1 and UBE2E2 but not UBE2E3."
OTUB1 activates UBE2E1.
| 2 5
OTUB1 activates UBE2E1. 7 / 7
| 2 5

reach
"Recently, UBE2E1 was shown to autoubiquitinate itself in vitro in the presence or absence of the E3 ligase, RNF4 (30, 31), raising the possibility that OTUB1 may stabilize UBE2E1 by preventing autoubiquitination.To test the hypothesis that OTUB1 may directly inhibit UBE2E1, we assayed the autoubiquitinating activity of UBE2E1 in the presence and absence of OTUB1 in vitro."

eidos
"In light of our observation that the absence of OTUB1 destabilizes UBE2E1 , we tested whether decreased cellular levels of OTUB1 reduce ubiquitination of H2A Lys-119 ."

reach
"Taken together, we provide evidence that OTUB1 rescues UBE2E1 from degradation in vivo."

eidos
"Depletion of OTUB1 destabilizes UBE2E1 We took advantage of the ability to generate Otub1 - / - null MEFs to search for proteins whose stability depends on the presence of OTUB1 ."

reach
"OTUB1 rescues UBE2E1 from proteasomal degradation."

reach
"To confirm that OTUB1 directly regulates the stability of UBE2E1, we generated stable cell lines expressing siRNA-resistant FLAG-OTUB1 and knocked down endogenous OTUB1 by siRNA."

reach
"Taken together, we provide evidence that OTUB1 in rescues UBE2E1 from degradation in vivo."
OTUB1 binds UBE2E1.
1 | 2 3
1 | 2 3

No evidence text available

sparser
"We verified that there was no interaction of Ubc9 with components of the ubiquitin pathway, such as the DUB (deubiquitinating enzyme) OTUB1 ( xref ), and a UBE2E1 and OTUB1 interaction, used as a positive control, was detected, as expected."

reach
"Because UBE2E1 is known to bind OTUB1 (17), this raises the possibility that OTUB1 may stabilize UBE2E1 directly by forming an OTUB1UBE2E1 complex."

reach
"We verified that there was no interaction of Ubc9 with components of the ubiquitin pathway, such as the DUB (deubiquitinating enzyme) OTUB1 (XREF_FIG), and a UBE2E1 and OTUB1 interaction, used as a positive control, was detected, as expected."

sparser
"Because UBE2E1 is known to bind OTUB1 ( xref ), this raises the possibility that OTUB1 may stabilize UBE2E1 directly by forming an OTUB1UBE2E1 complex."

sparser
"Because all members of the UBE2E family can autoubiquitinate themselves in vitro ( xref , xref ), the mechanism of stabilization we observed for OTUB1-UBE2E1 likely extends to UBE2E2 and UBE2E3."
OTUB1 increases the amount of UBE2E1.
| 4
OTUB1 increases the amount of UBE2E1. 4 / 4
| 4

reach
"As shown in Fig. 2B, siRNA knockdown of OTUB1 expression similarly reduced levels of UBE2E1 (Fig. 2B)."

reach
"As shown in Fig. 2E, overexpression of OTUB1 significantly enhanced the steady-state levels of UBE2E1 (Fig. 2E)."

reach
"Expression of WT or catalytically inactive OTUB1 restores UBE2E1 levels."

reach
"As shown in Fig. 2F, expression of a catalytic mutant, FLAG-OTUB1 , restores levels of UBE2E1, whereas expression of OTUB1 , fails to restore WT levels of UBE2E1 (Fig. 2F)."
OTUB1 affects SMAD2_3
| 13 15
OTUB1 binds SMAD2_3.
| 6 15
| 6 14

reach
"The TGFbeta induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice (XREF_FIG)."

sparser
"OTUB1 interacts with active SMAD2/3 and impacts TGFβ signalling."

sparser
"Therefore, the association of OTUB1 with phospho-SMAD2/3 would be predicted to prevent SMAD2/3 from being polyubiquitylated and degraded, thereby enhancing TGFβ signalling."

sparser
"These observations imply that SMAD4 is not required for the interaction between OTUB1 and phospho-SMAD2/3."

sparser
"The findings shed light into the molecular mechanisms by which the phospho-SMAD2/3OTUB1 interaction results in the regulation of TGFβ-induced transcription as well as phospho-SMAD2/3 turnover."

sparser
"Despite the phospho-dependent nature of OTUB1 interaction with SMAD2/3, no phospho-interaction motifs within OTUB1 have been reported."

reach
"Despite the phospho dependent nature of OTUB1 interaction with SMAD2/3, no phospho-interaction motifs within OTUB1 have been reported."

reach
"As shown in XREF_FIG, OTUB1 selectively binds components of the active phospho, SMAD2/3, and SMAD4 complex; however, it was not clear whether SMAD4 was required for this interaction."

sparser
"It has been shown that OTUB1 interacts with phosphorylated Smad2/3 at the C-terminus specifically after TGF-β stimulation."

sparser
"Consistent with the notion that OTUB1 interaction could be phospho-SMAD2/3-dependent, dephosphorylation of OTUB1 IPs by λ-phosphatase to dephosphorylate phospho-SMAD2/3 partially abolishes OTUB1SMAD2/3 interaction ( xref )."
| 1

sparser
"The TGFβ-induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice ( xref )."
OTUB1 inhibits SMAD2_3.
| 1
| 1

reach
"Therefore, the association of OTUB1 with phospho-SMAD2/3 would be predicted to prevent SMAD2/3 from being polyubiquitylated and degraded, thereby enhancing TGFbeta signalling."
OTUB1 activates SMAD2_3.
| 1
OTUB1 activates SMAD2_3. 1 / 4
| 1

reach
"OTUB1 has been found to modulate TGFbeta signalling by promoting the stabilization of only the phosphorylated form of SMAD2/3 [98]."
OTUB1 deubiquitinates SMAD2_3.
| 3
OTUB1 deubiquitinates SMAD2_3. 3 / 3
| 3

reach
"These results imply that OTUB1 inhibits the ubiquitylation of SMAD2/3 rather than directly deubiquitylating them."

reach
"Interestingly, it was found that the mechanism is non canonical and non catalytic : instead of OTUB1 directly deubiquitinating SMAD2/3 rather it interacts with the E2 ligases prevents the transfer of [MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

reach
"This led us to hypothesize that OTUB1 might inhibit the ubiquitylation of SMAD2/3."
OTUB1 ubiquitinates SMAD2_3.
| 2
OTUB1 leads to the ubiquitination of SMAD2_3. 2 / 2
| 2

reach
"For instance, a recent study revealed that OTUB1 inhibits the ubiquitination and degradation of active SMAD2/3, thereby enhancing the activity of the TGFbeta signaling pathway [XREF_BIBR] (XREF_FIG)."

reach
"OTUB1 enhances TGFbeta signalling by inhibiting the ubiquitylation and degradation of active SMAD2/3."

eidos
"Moreover , knockdown of OTUB1 suppressed cell migration ( Fig. 2d ) and invasion ( Fig. 2e ) of RCC , suggesting that OTUB1 might contribute to cell proliferation and malignant phenotypes of RCC ."

reach
"We finally determined that OTUB1 promotes the proliferation and progression of PCa via deubiquitinating and stabling Cyclin E1."

reach
"In this study, OTUB1 enhanced the proliferation, migration, and invasion of endometriosis cells."

reach
"In vitro experiments also suggested that OTUB1‐isoform2 promoted ovarian tumour cell proliferation and invasion."

reach
"OTUB1 promotes cell proliferation and epirubicin resistance through targeting FOXM1."

reach
"Overexpression OTUB1 obviously promoted the proliferation and migration of PC3 and C4-2 cells via mediating the deubiquitinated Cyclin E1, while OTUB1 knockout has the opposite effect."

reach
"The results showed that OTUB1 overexpression promoted the proliferation and growth of 11Z and HESC cells (Figures 4A and 4B)."

reach
"As discussed above, activation of mTOR via IL-2R signaling allows selective mRNA translation, including the epistatic regulator of GRAIL, Otub1, whose expression results in the degradation of GRAIL and allows T cell proliferation."

reach
"Hence, the overexpression of OTUB1 contributes to the aberrant proliferation and epirubicin resistance of MCF7 cells and correlates with poor survival and chemotherapy resistance of breast cancer cohort."

eidos
"However , in our study , we discovered that high level of OTUB1 promoted cell proliferation , while low expression of OTUB1 had the opposite effect ."

reach
"The result showed that overexpression of OTUB1 significantly enhanced MCF-7 cell proliferation, whereas OTUB1 depletion decreased the rates of proliferation of MCF-7 cells (XREF_SUPPLEMENTARY)."

reach
"OTUB1 knockdown promoted proliferation, inhibited apoptosis and EMT of TGF-β1-treated cells."

reach
"Flow cytometry-based analysis of E18.5 lung tissue revealed that Otub1 deletion increased proliferation of major lung parenchymal and mesenchymal/other non-hematopoietic cell types."

reach
"Knockdown of OTUB1 inhibited cell viability and proliferation, as well as migration and invasion of RCC cells."

reach
"Consequently, overexpression of Otub1 induces p53 dependent apoptosis and inhibition of cell proliferation whereas knockdown of Otub1 attenuates p53 activation following DNA damage [XREF_BIBR]."
OTUB1 affects MAPT
14 1 | 17
OTUB1 activates MAPT.
| 12
OTUB1 activates MAPT. 10 / 12
| 12

reach
"Consequently, Otub1 dependent deubiquitination inhibits Tau degradation through the proteasome pathway and prolongs its half-life, leading to accumulation of pathological forms of Tau."

reach
"Otub1 increases Tau stability and increases Tau aggregation in a well characterized cellular Tau aggregation model."

reach
"Knockdown of Otub1 increased Tau turnover, correlating with the decrease in expression of Otub1 obtained by the different siRNAs."

reach
"Otub1 but not Otub1-C91A impairs Tau degradation by removing Lys48 linked polyubiquitin chains from Tau in primary neurons."

reach
"Finally, we demonstrated that expression of Otub1 but not its catalytically inactive form induced pathological Tau forms after 2months in Tau transgenic mice invivo, including AT8 positive Tau and oligomeric Tau forms."

reach
"In addition, we found robust induction of a (homo- or heterotypic) Tau complex (Tau c), which was strongly detected in AAV-Otub1-infected neurons but absent in AAV-GFP-infected neurons, indicating clearcut Otub1 induced modulation of Tau in neurons."

reach
"Otub1 strongly increased AT8 positive Tau and oligomeric Tau forms and increased Tau seeded Tau aggregation in primary neurons."

reach
"Otub1 enhances Tau oligomerization and Tau seeded Tau aggregation in primary neurons."

reach
"Taken together, our data demonstrate that Otub1, identified as a Tau interacting protein in the Tau interactome mapping, modulates Tau, by increasing Tau seeded Tau aggregation, by formation of a Otub1 induced Tau complex Tau c, and by increasing the concentration of oligomeric Tau forms in primary neurons."

reach
"Taken together, we conclude that overexpressed Otub1 in primary neurons expressing TauP301S increased total Tau and induced a robust increase in AT8 positive Tau."
OTUB1 phosphorylates MAPT.
8 | 2
OTUB1 leads to the phosphorylation of MAPT on S519. 4 / 4
4 |

"Immunocytological analysis with AT8 antibody against phosphorylated Tau (Ser202/Thr205) demonstrated that Otub1 expression drastically increased phospho-Tau (p-Tau Ser202/Thr205) in primary neurons compared with GFP expression (Fig. 3a)."

"AAV-driven expression of Otub1-C91A did not increase AT8-positive Tau, in contrast to expression of wild-type Otub1 and the N-terminally truncated form of Otub1. This was demonstrated by immunofluorescence staining (Fig. 6a) and confirmed by biochemical analysis (Fig. 6b)."

"Biochemical analysis confirmed a sharp increase of phosphorylated Tau at Ser202/Thr205 in Otub1-infected primary neurons (Fig. 3b)."

"AAV-driven expression of Otub1-C91A did not increase AT8-positive Tau, in contrast to expression of wild-type Otub1 and the N-terminally truncated form of Otub1. This was demonstrated by immunofluorescence staining (Fig. 6a) and confirmed by biochemical analysis (Fig. 6b)."
OTUB1 leads to the phosphorylation of MAPT on T522. 4 / 4
4 |

"Biochemical analysis confirmed a sharp increase of phosphorylated Tau at Ser202/Thr205 in Otub1-infected primary neurons (Fig. 3b)."

"AAV-driven expression of Otub1-C91A did not increase AT8-positive Tau, in contrast to expression of wild-type Otub1 and the N-terminally truncated form of Otub1. This was demonstrated by immunofluorescence staining (Fig. 6a) and confirmed by biochemical analysis (Fig. 6b)."

"AAV-driven expression of Otub1-C91A did not increase AT8-positive Tau, in contrast to expression of wild-type Otub1 and the N-terminally truncated form of Otub1. This was demonstrated by immunofluorescence staining (Fig. 6a) and confirmed by biochemical analysis (Fig. 6b)."

"Immunocytological analysis with AT8 antibody against phosphorylated Tau (Ser202/Thr205) demonstrated that Otub1 expression drastically increased phospho-Tau (p-Tau Ser202/Thr205) in primary neurons compared with GFP expression (Fig. 3a)."
OTUB1 leads to the phosphorylation of MAPT. 2 / 2
| 2

reach
"Otub1 promotes Tau phosphorylation and oligomerization invivo in Tau transgenic mice."

reach
"Otub1 increases total Tau concentration and Tau phosphorylation in primary neurons."
OTUB1 binds MAPT.
4 | 1
4 | 1

"We focused particularly on Tau deubiquitination and identified three major candidate deubiquitinating enzymes, including Otub1, USP5, and USP9x, with Otub1 as the strongest Tau interactor according to statistical analysis"

"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."

reach
"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."

"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."

"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."
OTUB1 increases the amount of MAPT.
2 | 1
OTUB1 increases the amount of MAPT. 3 / 3
2 | 1

reach
"Otub1 also significantly increased total Tau protein level compared with GFP control."

"We found that Tau degradation was significantly impaired in primary neurons infected with Otub1 WT, but not with catalytically dead mutant C91A, compared with GFP control."

"Otub1 also significantly increased total Tau protein level compared with GFP control (Fig. 3b)."
OTUB1 deubiquitinates MAPT.
1 | 1
OTUB1 deubiquitinates MAPT. 2 / 2
1 | 1

reach
"We demonstrate here for the first time that Tau is deubiquitinated by Otub1."

"Focusing on Tau deubiquitination, we here identify Otub1 as a Tau-deubiquitinating enzyme. Otub1 directly affected Lys48-linked Tau deubiquitination"
OTUB1 affects UBE2D2
8 | 14 6
OTUB1 binds UBE2D2.
8 | 9 4
8 | 9 4

reach
"Addition of FAT10 also led to an increased interaction between OTUB1 and its cognate E2 UbcH5B implying a function of FAT10 in the inhibition of polyubiquitylation."

sparser
"These results indicated that EN523 does not interfere with binding of UBE2D2 to OTUB1."

sparser
"Binding of UBE2D2 to OTUB1, however, lowers the K M for of OTUB1 K48 chains by more than an order of magnitude to within range of physiological substrate concentrations xref ."

reach
"Resolution was extended by refinement at 3.3 A resolution against the P2 1 X-ray data set to an R factor / R free of 22.1/28.8%, with a doubling of the contents of the asymmetric unit The fold architectures of UbcH5b, OTUB1 and Ub have been described previously and do not deviate significantly in the Ub ~ UbcH5b and OTUB1-Ub complex (see XREF_SUPPLEMENTARY for sequence alignments and secondary structure assignments)."

No evidence text available

reach
"To assess if free Ub could influence binding of OTUB1 to UbcH5b ~ Ub, we employed a time resolved (TR)-FRET-based assay where UbcH5b ~ Ub was labelled with Tb 3+ cryptate and OTUB1 was labelled with Alexa 488."

reach
"A near-complete model of the Ub ~ UbcH5b and OTUB1-Ub complex was refined at 3.8 A resolution to an R factor / R free of 21.7/27.9% with good geometry statistics (XREF_TABLE)."

sparser
"OTUB1 residue Glu28 is sandwiched between UBCH5B residues Lys66 and Arg90 and OTUB1-Asp35 hydrogen bonds with UBCH5B-Lys63, while OTUB1-Leu24 forms hydrophobic interactions with UBCH5B-Leu 119 ( xref )."

reach
"Compared with a previously published Ub ~ UbcH5b and OTUB1-Ub complex structure, Ubv.B1.1 is rotated by 22degrees relative to the distal site Ub.wt (XREF_FIG)."

reach
"These results indicated that EN523 does not interfere with binding of UBE2D2 to OTUB1."
OTUB1 inhibits UBE2D2.
| 5 2
OTUB1 inhibits UBE2D2. 7 / 9
| 5 2

reach
"The OTUB1 double E28A D35A substitution, which affects OTUB1 contacts with UBCH5B, greatly decreased the ability of UBCH5B to stimulate OTUB1 DUB activity without affecting OTUB1 activity in the absence of UBCH5B (XREF_FIG)."

reach
"Similar interactions could form between OTUB1 and UBE2D2 (UBCH5b) (XREF_FIG), but clashes due to an insertion and a non conserved lysine would arise with UBE2L3 (UBCH7), consistent with the observation that OTUB1 inhibits UBCH5b but not UBCH7 4."

reach
"Interestingly, this non canonical mode of action by OTUB1 was found not to be unique to UBC13, as OTUB1 was also found to interact with and inhibit the E2 enzymes UBE2D2 and UBCH5B and UBE2D3 and UBCH[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

reach
"Competition with E3 binding is likely to be particularly important for OTUB1 inhibition of UBCH5b, which, unlike UBC13, is strictly dependent upon an E3 ligase for activity."

reach
"Since OTUB1 also inhibits UBCH5b 4, which does not function with a UEV, we speculate that the OTUB1 N-terminus may also interfere with acceptor ubiquitin binding for other E2s."

sparser
"Competition with E3 binding is likely to be particularly important for OTUB1 inhibition of UBCH5b, which, unlike UBC13, is strictly dependent upon an E3 ligase for activity."

sparser
"Similar interactions could form between OTUB1 and UBE2D2 (UBCH5b) ( xref ), but clashes due to an insertion and a non-conserved lysine would arise with UBE2L3 (UBCH7), consistent with the observation that OTUB1 inhibits UBCH5b but not UBCH7 xref ."
UBE2D2 affects OTUB1
8 | 14 4
UBE2D2 binds OTUB1.
8 | 9 4
8 | 9 4

reach
"Addition of FAT10 also led to an increased interaction between OTUB1 and its cognate E2 UbcH5B implying a function of FAT10 in the inhibition of polyubiquitylation."

sparser
"These results indicated that EN523 does not interfere with binding of UBE2D2 to OTUB1."

sparser
"Binding of UBE2D2 to OTUB1, however, lowers the K M for of OTUB1 K48 chains by more than an order of magnitude to within range of physiological substrate concentrations xref ."

reach
"Resolution was extended by refinement at 3.3 A resolution against the P2 1 X-ray data set to an R factor / R free of 22.1/28.8%, with a doubling of the contents of the asymmetric unit The fold architectures of UbcH5b, OTUB1 and Ub have been described previously and do not deviate significantly in the Ub ~ UbcH5b and OTUB1-Ub complex (see XREF_SUPPLEMENTARY for sequence alignments and secondary structure assignments)."

No evidence text available

reach
"To assess if free Ub could influence binding of OTUB1 to UbcH5b ~ Ub, we employed a time resolved (TR)-FRET-based assay where UbcH5b ~ Ub was labelled with Tb 3+ cryptate and OTUB1 was labelled with Alexa 488."

reach
"A near-complete model of the Ub ~ UbcH5b and OTUB1-Ub complex was refined at 3.8 A resolution to an R factor / R free of 21.7/27.9% with good geometry statistics (XREF_TABLE)."

sparser
"OTUB1 residue Glu28 is sandwiched between UBCH5B residues Lys66 and Arg90 and OTUB1-Asp35 hydrogen bonds with UBCH5B-Lys63, while OTUB1-Leu24 forms hydrophobic interactions with UBCH5B-Leu 119 ( xref )."

reach
"Compared with a previously published Ub ~ UbcH5b and OTUB1-Ub complex structure, Ubv.B1.1 is rotated by 22degrees relative to the distal site Ub.wt (XREF_FIG)."

reach
"These results indicated that EN523 does not interfere with binding of UBE2D2 to OTUB1."
UBE2D2 activates OTUB1.
| 5
UBE2D2 activates OTUB1. 5 / 8
| 5

reach
"To confirm that the observed stimulation was not assay dependent, we used a gel based assay to verify that UBCH5B stimulates OTUB1 cleavage of native Lys48 linked diubiquitin (XREF_FIG and XREF_SUPPLEMENTARY)."

reach
"Thes results indicate that UBCH5B stimulates OTUB1 by increasing its affinity for the Lys48 diubiquitin substrate."

reach
"We assayed the ability of UBCH5B ~ Ub to stimulate OTUB1 (XREF_FIG) and found that both charged and uncharged UBCH5B stimulate OTUB1 to a similar degree."

reach
"The importance of the OTUB1 N-terminal helix to its ability to be stimulated by UBCH5B, together with the role of these N-terminal residues in forming the proximal ubiquitin binding site of OTUB1 XREF_BIBR, XREF_BIBR, XREF_BIBR, suggested that UBCH5B may increase OTUB1 affinity for Lys48 diubiquitin via the proximal ubiquitin binding site."

reach
"However, assays of OTUB1 stimulation by UBCH5B or UBCH5B ~ Ub over a range of ubiquitin concentrations (XREF_FIG) (XREF_SUPPLEMENTARY) showed that stimulation by UBCH5B is relatively insensitive to free ubiquitin, but that stimulation by UBCH5B ~ Ub decreases as a function of increasing concentration of free ubiquitin, dropping to low levels below ~ 1 microM free ubiquitin."
OTUB1 affects MSH2
2 | 14 12
OTUB1 binds MSH2.
2 | 9 12
2 | 8 12

sparser
"We also observed strong interactions between MSH2 and OTUB1(48–271) and OTUB1(48–159), but not between MSH2 and OTUB1(1–47) or OTUB1(159–271) ( xref D )."

reach
"Although the interaction between MSH2 and OTUB1 is relatively weak, it is much more specific than the control reactions in both the pulldown and the co-immunoprecipitation assays."

sparser
"OTUB1 interacts with MSH2 via its deubiquitylation catalytic center."

sparser
"We show that OTUB1 interacts with the central domain of MSH2 ( xref , E and F )."

sparser
"Taken together, these results indicate that OTUB1 physically interacts with MSH2 via its middle C1 domain, including its catalytic center."

sparser
"A recent mass spectrometry study of MMR protein interactomes revealed a potential interaction between MSH2 and OTUB1 ( xref ), a deubiquitilating enzyme that belongs to the ovarian tumor (OTU) superfamily of predicted cysteine proteases ( xref , xref )."

reach
"We found that Flag-MSH2 and HA-OTUB1 pulled each other down (XREF_FIG A), which suggests a specific interaction between MSH2 and OTUB1."

reach
"Therefore, we conclude that OTUB1 interacts with MSH2 mostly through the central domain."

reach
"A recent mass spectrometry study of MMR protein interactomes revealed a potential interaction between MSH2 and OTUB1, a deubiquitilating enzyme that belongs to the ovarian tumor (OTU) superfamily of predicted cysteine proteases."

No evidence text available
C1 binds OTUB1 and MSH2. 1 / 1
| 1

reach
"Taken together, these results indicate that OTUB1 physically interacts with MSH2 via its middle C1 domain, including its catalytic center."
OTUB1 deubiquitinates MSH2.
| 5
OTUB1 leads to the deubiquitination of MSH2. 5 / 5
| 5

reach
"These results strongly suggest that OTUB1 blocks MSH2 ubiquitination by inhibiting the E2 ligase activity, rather than by directly deubiquitinating MSH2."

reach
"Collectively, these results suggest that MSH2 is a substrate of OTUB1 and that OTUB1 inhibits MSH2 ubiquitination."

reach
"We therefore conclude that OTUB1 prevents MSH2 ubiquitination by suppressing the E2 ligase activity."

reach
"OTUB1 inhibits the ubiquitination of MSH2."

reach
"It is possible that OTUB1 prevents MSH2 ubiquitination by inhibiting the E2 activity of HDAC6 or by competing with HDAC6 for the MSH2 residues located in the central domain."
OTUB1 affects TRAF3
2 1 | 1 17 6
OTUB1 binds TRAF3.
2 | 4 5
2 | 4 3

sparser
"Besides, the interaction between OTUB1 and TRAF3 was detected by Co-IP and ubiquitination assays."

reach
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus triggered IRF3 and NF-kappaB activation [XREF_BIBR]."

sparser
"Co-IP showed that overexpression of HSCARG enhanced the interaction of TRAF3 with OTUB1, whereas in HSCARG −/− cells, this association was severely attenuated ( xref )."

No evidence text available

reach
"Besides, the interaction between OTUB1 and TRAF3 was detected by Co-IP and ubiquitination assays."

reach
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63 linked polyubiquitin chains."

No evidence text available

reach
"Coimmunoprecipitations indicated OTUB1 and -2 interacted with TRAF3 and TRAF6, two E3 ubiquitin ligases required for virus triggered IRF3 and NF-kappaB activation, respectively."

sparser
"The Interaction of OTUB1 and TRAF3 Mediates NLRP3 Inflammasome Activity to Regulate TGF-β1-induced BEAS-2B Cell Injury."
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
OTUB1 deubiquitinates TRAF3.
1 | 8
OTUB1 deubiquitinates TRAF3. 9 / 9
1 | 8

"Regulation of virus-triggered signaling by OTUB1- and OTUB2-mediated deubiquitination of TRAF3 and TRAF6"

reach
"It was also shown that two OTUB deubiquitinating enzyme family members, OTUB1 and OTUB2, can deubiquitinate TRAF3 and TRAF6, leading to the inhibition of virus induced IFN-beta expression and cellular antiviral responses."

reach
"Knockout of HSCARG attenuated the de-ubiquitination of TRAF3 by OTUB1, and knockdown of OTUB1 abolished the effect of HSCARG."

reach
"Furthermore, we found that OTUB1 and OTUB2 mediated virus triggered deubiquitination of TRAF3 and -6."

reach
"Collectively, OTUB1 deubiquitinates TRAF3 to activate NLRP3 inflammasome, thereby leading to inflammation and remodeling of TGF-β1-induced cells, and further promoting the pathogenesis of asthma."

reach
"It was also shown that two OTUB deubiquitinating enzyme family members, OTUB1 and OTUB2, can deubiquitinate TRAF3 and TRAF6, leading to the inhibition of virus-induced IFN-β expression and cellular antiviral responses (53)."

reach
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus triggered IRF3 and NF-kappaB activation [XREF_BIBR]."

reach
"OTUB1 and its paralog OTUB2, deubiquitinate TRAF3 and TRAF6 to inhibit virus triggered signaling pathways that ultimately result in IRF3 and NF-kappaB activation [XREF_BIBR]."

reach
"OTUB1 and OTUB2 regulate virus-triggered IFN inflammation by deubiquitinating TRAF3 and TRAF6 [75]."
OTUB1 inhibits TRAF3.
| 1 3 1
OTUB1 inhibits TRAF3. 5 / 5
| 1 3 1

eidos
"TRAF3 are inhibited by DUBA , OTUB1 and UCHL1 that specilally remove TRAF3 K63-linked ubiquitination ."

sparser
"TRAF3 are inhibited by DUBA, OTUB1 and UCHL1 that specilally remove TRAF3 K63‐linked ubiquitination."

reach
"TRAF3 and TRAF6 are both deactivated by the DUbs otubain 1 (OTUB1) and OTUB2, which remove K63-linked polyubiquitin chains (Li et al., 2010b) ."

reach
"TRAF3 and TRAF6 are both deactivated by the DUbs otubain 1 (OTUB1) and OTUB2, which remove K63 linked polyubiquitin chains."

reach
"TRAF3 are inhibited by DUBA, OTUB1 and UCHL1 that specilally remove TRAF3 K63‐linked ubiquitination."
OTUB1 ubiquitinates TRAF3.
| 2
OTUB1 leads to the ubiquitination of TRAF3. 2 / 2
| 2

reach
"Two close relatives of DUBA, OTUB1 and OTUB2, were shown to reduce TRAF3 ubiquitination coupled with decreased anti-viral signaling responses in Sendai virus infected HEK 293T cells."

reach
"These findings suggest that OTUB1 may negatively regulate virus triggered type I interferon induction and the cellular antiviral response by deubiquitinating TRAF3."
OTUB1 affects UBE2
| 14
OTUB1 binds UBE2.
| 9
| 9

sparser
"These observations reveal a novel role for OTUB1 binding to E2 ubiquitin-conjugating enzymes in regulating E2 stability within the cell."

sparser
"Mass spectrometry-proteomic studies have revealed that OTUB1 interacts with six other E2 enzymes in cells: UBE2D1 (UbcH5a), UBE2D2 (UbcH5b), UBE2D3 (UbcH5c), UBE2E1 (UbcH6), UBE2E2 (UbcH8), and UBE2E3 (UbcH9 or UbcM2) xref , xref ."

sparser
"Mass spectrometry studies have revealed that OTUB1 can form complexes with several other E2s in cells, including UBE2E1 (UBCH6), UBE2E2 (UBCH8), and UBE2E3 (UBCH9), in addition to UBE2N (UBC13) and the UBCH5 (UBE2D1, -2, and -3) isoforms ( xref , xref )."

sparser
"In order to verify that the OTUB1 C91S mutation did not affect binding to E2 enzymes, we measured binding of a subset of E2s (UBE2D1 and UBE2D3) to wild-type OTUB1 and found no significant difference in K d values ( xref )."

sparser
"Likewise, binding of uncharged E2s to OTUB1 stimulates OTUB1 cleavage of K48-linked substrates [ xref ]."

sparser
"Further characterization of this mechanism demonstrated that OTUB1 directly binds and consequently inhibits a related subclass of E2 enzymes that include UBC13, the only known E2 that cooperates with RNF168 during the DNA damage response xref , xref ."

sparser
"An in vitro study showed that binding of an uncharged E2 enzyme to OTUB1 can stimulate cleavage of polyubiquitin by stabilizing N-terminal ubiquitin-binding helix to fold which then comprises the proximal ubiquitin-binding site xref ."

sparser
"We have demonstrated that OTUB1 binds to phospho-SMAD2/3 and E2 ubiquitin-conjugating enzymes, thereby inhibiting the polyubiquitylation of SMAD2/3 in vitro."

sparser
"Substitution of the active site cysteine with serine (C91S) inactivates OTUB1 ( xref ), whereas a T134R substitution abrogates OTUB1 binding to E2 ubiquitin-conjugating enzymes ( xref , xref ), thereby disrupting the ability of OTUB1 to prevent ubiquitin transfer."
OTUB1 inhibits UBE2.
| 5
OTUB1 inhibits UBE2. 5 / 12
| 5

sparser
"Both E2s can be inhibited by OTUB1 [ xref , xref ]."

sparser
"In addition, OTUB1 inhibits E2 ubiquitin-conjugating enzymes independent of its enzymatic activity, impeding ubiquitin chain formation [ xref , xref , xref ]."

sparser
"Thus, the same E2 enzymes that are inhibited by OTUB1 when the E2 is charged with ubiquitin can stimulate OTUB1 when uncharged."

sparser
"By specifically regulating Lys48-linked ubiquitin and Lys63-linked polyubiquitin, OTUB1 can target and inhibit E2 enzymes, such as UBC13, UBE2D, and UBE2E."

sparser
"We show that both stimulation of OTUB1 by E2 enzymes and noncatalytic inhibition of E2 enzymes by OTUB1 occur at physiologically relevant concentrations of both partners."
UBC affects OTUB1
25 |
25 |

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OTUB1 affects UBE2D1
4 | 1 1 7 8
OTUB1 binds UBE2D1.
4 | 4 5
4 | 4 5

reach
"Consistently, Otub1 interacts with UbcH5."

reach
"Moreover, we demonstrated the endogenous interactions between OTUB1 and UBE2N or UBE2D1 (XREF_FIG)."

sparser
"Consistently, Otub1 interacts with UbcH5."

reach
"To see if differences in relative stimulation of DUB activity can be attributed to variations in binding affinities, we determined equilibrium dissociation constants (K d) for OTUB1 binding to UBE2D1, UBE2D2, UBE2D3, UBE2N, and UBE2E1 using isothermal titration calorimetry (ITC)."

sparser
"Further, UbcH5 in turn mediates Otub1 monoubiquitination and this monoubiquitination facilitates the Otub1 binding to UbcH5 and likely inhibits ubiquitin chain transfer [ xref ], providing a mechanism underlying the Otub1 inhibition of E2 activity."

sparser
"Furthermore, proteomic analyses indicated that OTUB1 binds to E2s of the UBE2D and UBE2E families including the E2 UbcH5 ( xref ; xref )."

No evidence text available

reach
"Further, UbcH5 in turn mediates Otub1 monoubiquitination and this monoubiquitination facilitates the Otub1 binding to UbcH5 and likely inhibits ubiquitin chain transfer [XREF_BIBR], providing a mechanism underlying the Otub1 inhibition of E2 activity."

sparser
"Importantly, Asp88 was found to be the key residue mediating OTUB1 interaction with UbcH5, since mutation of this residue into alanine prevented their binding and abolished OTUB1 effect on p53 xref ."

No evidence text available
OTUB1 inhibits UBE2D1.
| 1 1 3 3
| 1 1 3 3

sparser
"In this study, we sought to elucidate the structural mechanism by which OTUB1 recognizes and inhibits UBC13, UbcH5 and related E2 enzymes."

trips
"Otub1 regulates p53 stability and activity via non-canonical inhibition of UbcH5, the MDM2 cognate ubiquitin-conjugating enzyme (E2)."

reach
"17 OTUB1 also suppresses UBCH5 E2 enzyme and stabilizes the p53 protein."

sparser
"It has been reported that OTUB1 non-catalytically inhibits UBE2D proteins from ubiquitinating p53 xref , xref and SMAD2/3, regulators of TGFβ signaling xref ."

sparser
"One such example is OTUB1 which can inhibit UbcH5."

eidos
"OTUB1 has also been shown to noncatalytically inhibit UBCH5 in vitro ( 18 ) and in cells ( 21 ) ."

reach
"One such example is OTUB1 which can inhibit UbcH5."

reach
"Monoubiquitination is critical for ovarian tumor domain containing ubiquitin aldehyde binding protein 1 (Otub1) to suppress UbcH5 enzyme and stabilize p53 protein."
OTUB1 affects UBC
25 |
25 |

No evidence text available

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| 1 23
| 1 22

reach
"OTUB1 promotes cancer cell invasion and tumorigenesis in various human cancers XREF_BIBR - XREF_BIBR, while the role of OTUB2 in cancer progression remains unknown."

reach
"Erratum : OTUB1 de-ubiquitinating enzyme promotes prostate cancer cell invasion in vitro and tumorigenesis in vivo."

reach
"OTUB1 promotes tumor invasion and predicts a poor prognosis in gastric adenocarcinoma."

reach
"OTUB1 promotes the migration and invasion of CRC cell lines."

reach
"In vitro wound healing and transwell assays showed that OTUB1 overexpression promoted tumor cell migration and invasion in gastric cancer cells."

reach
"Together, our findings demonstrate that OTUB1 promotes the migration, invasion, and metastasis of CRC cells in vitro and in vivo and acts as a potential metastasis marker and prognostic factor in CRC."

reach
"OTUB1 mediates prostate cancer cell invasion through RhoA activation and promotes tumorigenesis in vivo."

reach
"A growing body of literature demonstrates that the DUB Otubain 1 (OTUB1) regulates many cancer associated signaling pathways including MAPK, ERa, epithelial-mesenchymal transition (EMT), RHOa, mTORC1, FOXM1 and P53 to promote tumor cell survival, proliferation, invasiveness and therapeutic resistance."

reach
"MicroRNA-542-3p represses OTUB1 expression to inhibit migration and invasion of esophageal cancer cells."

reach
"The results showed that OTUB1 overexpression enhanced the migration and invasion ability of both cells (Figures 5A and 5B)."

reach
"Knockdown of OTUB1 inhibited cell viability and proliferation, as well as migration and invasion of RCC cells."
OTUB1 affects Cdc48
| 10 14
| 10 11

sparser
"Indeed, free Otu1 has much lower deubiquitination activity than Otu1 bound to the Cdc48 complex ( xref )."

sparser
"The DUB Otu1 interacts with Cdc48 to trim the polyubiquitin chain (but does not completely remove the chain) facilitating further threading of the substrate through the central pore of Cdc48."

sparser
"Otu1 binds via its UBX-like domain to the N domain of Cdc48, an interaction that stimulates its deubiquitination activity ( xref ; xref )."

reach
"One view is that the binding of Otu1 and Ufd3 to the Cdc48 complex primes this enzyme to inhibit ubiquitination, and thus degradation, of ERAD substrates."

reach
"Notably, Cdc48 can bind Otu1 and Ufd3 simultaneously, making a cooperation of both inhibitory mechanisms possible."

sparser
"Our data indicate that the Otu1Cdc48 interaction is conserved among eukaryotes."

reach
"We also show that Otu1 interacts with Cdc48, a regulator of the ER associated degradation pathway."

sparser
"We also show that Otu1 interacts with Cdc48, a regulator of the ER-associated degradation pathway."

reach
"The DUB Otu1 can bind simultaneously with Ufd3 to Cdc48."

reach
"YOD1 is the closest homolog of Saccharomyces cerevisiae Otu1, which associates with Cdc48, to regulate the processing of the endoplasmic reticulum (ER) membrane embedded transcription factor Spt23 [18[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"
OTUB1 binds DOA1 and Cdc48. 3 / 3
| 3

sparser
"Notably, Cdc48 can bind Otu1 and Ufd3 simultaneously, making a cooperation of both inhibitory mechanisms possible."

sparser
"The DUB Otu1 can bind simultaneously with Ufd3 to Cdc48."

sparser
"One view is that the binding of Otu1 and Ufd3 to the Cdc48 complex primes this enzyme to inhibit ubiquitination, and thus degradation, of ERAD substrates."
OTUB1 affects RNF128
3 1 | 14 5
OTUB1 binds RNF128.
3 1 | 4 5
3 | 4 3

reach
"Otubain-1 and ARF1 both bind GRAIL, but they have opposite effects in regulating the self ubiquitylation and degradation of GRAIL."

sparser
"GRAIL and Otub1 interactions were originally identified in a yeast two-hybrid screen using a human genomic library ( xref )."

sparser
"Another DUB, Otub1 interacts with GRAIL and regulates the delicate balance between immune activation and anergy. xref WB analysis revealed decreased Otub1 expression in ManLAM‐treated activated CD4 + T cells."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available

No evidence text available

reach
"GRAIL and Otub1 interactions were originally identified in a yeast two-hybrid screen using a human genomic library."

reach
"Another DUB, Otub1 interacts with GRAIL and regulates the delicate balance between immune activation and anergy.38 WB analysis revealed decreased Otub1 expression in ManLAM treated activated CD4 + T cells."

No evidence text available

reach
"After T cell activation, Otubain1 binds Grail and inhibits its deubiquitination, leading to Grail degradation."
1 | 2

sparser
"Otub1 forms a trimolecular complex with USP8 and GRAIL, and upregulated Otub1 promotes GRAIL's proteosomal degradation."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available
OTUB1 inhibits RNF128.
| 5
OTUB1 inhibits RNF128. 5 / 5
| 5

reach
"Whereas otubain-1 negatively regulates GRAIL in CD4 + T cells, otubain-1 ARF-1 stabilizes GRAIL expression."

reach
"Otub1 forms a trimolecular complex with USP8 and GRAIL, and upregulated Otub1 promotes GRAIL 's proteosomal degradation."

reach
"Furthermore, addition of IL-2 was able to activate the mTOR pathway, inducing Otubain-1 expression, which mediated GRAIL degradation and improved T cell proliferation."

reach
"Thus, our current working model is that Otub 1 promotes GRAIL degradation by de-ubiquitination of ubiquitinated USP8, thereby diminishing USP8 activity (XREF_FIG)."

reach
"Interestingly, Otub1 expression completely abolished USP8 mediated stabilization of GRAIL when all 3 proteins were co-expressed."
OTUB1 activates RNF128.
| 4
OTUB1 activates RNF128. 4 / 4
| 4

reach
"As Otub-1 is controlled by the Akt-mTOR pathway and is a negative regulator of the GRAIL function [XREF_BIBR, XREF_BIBR], this suggests that T. cruzi infection may disrupt the Akt-mTOR pathway resulting in Otub-1 downregulation, which in turn may induce GRAIL."

reach
"This suggests that LAM may disrupt the Akt-mTOR pathway resulting in Otub-1 down-regulation, which in turn may induce GRAIL."

reach
"When mTOR is inhibited by rapamycin treatment during stimulation, although Otub1 mRNA is up-regulated, Otub1 protein is not expressed, allowing GRAIL to be maintained (XREF_FIG, third lane)."

reach
"Moreover, the catalytic inactive C748S USP8 mutant made no difference on Otub1 mediated GRAIL stability."
OTUB1 decreases the amount of RNF128.
| 1
OTUB1 decreases the amount of RNF128. 1 / 1
| 1

reach
"However, NOD and B6 Tregs expressed significantly lower levels of GRAIL and enhanced levels of OTUB1 with respect to BALB/c mice (Figure 4D)."
OTUB1 affects HSF1
| 18 5
OTUB1 activates HSF1.
| 13
OTUB1 activates HSF1. 10 / 13
| 13

reach
"The results showed that OTUB1 overexpression increased the abundance of HSF1 in a dose-dependent manner in HEK293T cells (Figures 2A and 2B)."

reach
"OTUB1 promoted the protein stability of HSF1 through deubiquitination and prolonged its half-life."

reach
"Thus, OTUB1 enhances the transcriptional activity of HSF1."

reach
"In summary, OTUB1 promotes the HSF1 protein stability through the deubiquitination pathway."

reach
"Therefore, we overexpressed OTUB1 in HEK293T cells and treated them with cycloheximide or proteasome inhibitors to determine whether the inhibition of the proteasome could abolish OTUB1-mediated stability of HSF1 protein."

reach
"OTUB1 promotes the protein stability of HSF1 through deubiquitination."

reach
"OTUB1 promoted the protein stability of HSF1, so we next determined whether OTUB1 could regulate HSF1-mediated transcription."

reach
"In summary, OTUB1 promotes the development of endometriosis by up-regulating HSF1."

reach
"In addition, OTUB1 promoted the transcriptional activity of HSF1."

reach
"As we expected, OTUB1 prolonged the half-life of HSF1 in HEK293T cells (Figure 2H)."
OTUB1 binds HSF1.
| 3 5
| 3 5

reach
"To determine the regions for interaction between OTUB1 and HSF1, we constructed two truncated fragments of OTUB1 (1-47aa and 48-271aa) (Figure 1G)."

sparser
"Moreover, the OTUB1-HSF1 interaction was demonstrated in the proximity ligation assay (PLA) ( xref A and S1B)."

sparser
"Similarly, there was an interaction between endogenous OTUB1 and HSF1 in the endometrial ectopic epithelial (11Z) cell line ( xref C and 1D)."

reach
"Similarly, there was an interaction between endogenous OTUB1 and HSF1 in the endometrial ectopic epithelial (11Z) cell line (Figures 1C and 1D)."

sparser
"To determine the regions for interaction between OTUB1 and HSF1, we constructed two truncated fragments of OTUB1 (1-47aa and 48-271aa) ( xref G)."

reach
"However, the upstream mechanisms regulating this process remain unclear.In this study, we identified the interaction between OTUB1 and HSF1."

sparser
"In this study, we identified the interaction between OTUB1 and HSF1."

sparser
"Here, we demonstrate that OTUB1 interacts with HSF1 and promotes HSF1 protein stability through deubiquitination."
OTUB1 increases the amount of HSF1.
| 2
OTUB1 increases the amount of HSF1. 2 / 2
| 2

reach
"OTUB1 overexpression increased the mRNA levels of HSF1 target genes, including HSP10, HSP60, HSP90, and HSP105, in 11Z and HESC cells (Figures 3A and 3B)."

reach
"OTUB1 promoted the protein stability of HSF1, so we next determined whether OTUB1 could regulate HSF1-mediated transcription."
MSH2 affects OTUB1
2 | 9 12
2 | 8 12

sparser
"We also observed strong interactions between MSH2 and OTUB1(48–271) and OTUB1(48–159), but not between MSH2 and OTUB1(1–47) or OTUB1(159–271) ( xref D )."

reach
"Although the interaction between MSH2 and OTUB1 is relatively weak, it is much more specific than the control reactions in both the pulldown and the co-immunoprecipitation assays."

sparser
"OTUB1 interacts with MSH2 via its deubiquitylation catalytic center."

sparser
"We show that OTUB1 interacts with the central domain of MSH2 ( xref , E and F )."

sparser
"Taken together, these results indicate that OTUB1 physically interacts with MSH2 via its middle C1 domain, including its catalytic center."

sparser
"A recent mass spectrometry study of MMR protein interactomes revealed a potential interaction between MSH2 and OTUB1 ( xref ), a deubiquitilating enzyme that belongs to the ovarian tumor (OTU) superfamily of predicted cysteine proteases ( xref , xref )."

reach
"We found that Flag-MSH2 and HA-OTUB1 pulled each other down (XREF_FIG A), which suggests a specific interaction between MSH2 and OTUB1."

reach
"Therefore, we conclude that OTUB1 interacts with MSH2 mostly through the central domain."

reach
"A recent mass spectrometry study of MMR protein interactomes revealed a potential interaction between MSH2 and OTUB1, a deubiquitilating enzyme that belongs to the ovarian tumor (OTU) superfamily of predicted cysteine proteases."

No evidence text available
C1 binds OTUB1 and MSH2. 1 / 1
| 1

reach
"Taken together, these results indicate that OTUB1 physically interacts with MSH2 via its middle C1 domain, including its catalytic center."
HIF affects OTUB1
| 1 21
HIF binds OTUB1.
| 14
| 10

sparser
"These results show that OTUB1 maintains its enzymatic activity within the heterotrimeric complex with FIH, but the important regulation of its activity by the E2 enzyme UBCH5B is inverted, demonstrating a functional effect of FIH:FIH-OTUB1 HT formation."

sparser
"The FIH-OTUB1 heterodimer forms co-translationally and is extraordinarily stable."

sparser
"FIH and OTUB1 form a covalently linked protein complex."

sparser
"We observed that the formation of the FIH-OTUB1 heterodimer is slow (within the range of several hours) combined with slow degradation kinetics (up to 24 h)."

sparser
"This demonstrated that UBCH5B had the opposite effect on OTUB1 activity when OTUB1 was bound by FIH (forming the HT) than on monomeric OTUB1."

sparser
"FIH-dependent FIH-OTUB1 heterodimer formation is a hypoxia-regulated mechanism."

sparser
"We show evidence for an unexpected formation of a previously unknown strong, likely covalent, interaction between FIH and OTUB1."

sparser
"We next used the interaction of FIH with OTUB1 as additional positive control [ xref ] and confirmed this interaction in the case of OTUB1 WT in the interactome experiment and also subsequently by western blot analysis (Figs xref and xref )."

sparser
"We previously showed that the cellular oxygen sensor factor-inhibiting HIF (FIH) interacts with OTUB1 [ xref , xref , xref , xref ] and hydroxylates asparagine 22, affecting OTUB1 substrate targeting and cellular energy metabolism [ xref ]."

sparser
"The input as well as the FLAG-specific IPs showed that beside N22 also C23 mutation abrogated both the HD and the non-covalent FIH:OTUB1 interaction, while mutations of S16 and/or S18 decreased the HD and the FIH:OTUB1 interaction by roughly 50% ( xref )."
HIF binds OTUB1 and HTT. 4 / 4
| 4

sparser
"Interestingly, purified FIH and OTUB1 did not form the HD under cell-free conditions (data not shown)."

sparser
"Taken together, our results demonstrate that FIH catalyses HD formation with OTUB1, which is remarkably sensitive to changes in oxygen availability within the physiologically relevant range, suggesting a function in oxygen-dependent signaling."

sparser
"The covalent FIH-OTUB1 HD formation may represent an alternative molecular mechanism for the cellular adaptation to oxygen changes over longer time periods, linking oxygen sensing and deubiquitinase activity."

sparser
"However, peptides corresponding to the suspected regions of FIH-OTUB1 HD formation could not be detected by MS, which is likely due to the unknown molecular weight of these unique peptides, and excludes a direct examination of the nature of the FIH-OTUB1 bond."
HIF hydroxylates OTUB1.
| 1 7
HIF hydroxylates OTUB1. 5 / 5
| 1 4

reach
"For example, hydroxylation of OTUB1 by factor inhibiting HIF (FIH) leads to a profound change in the interaction of OTUB1 with proteins important in cellular metabolism."

sparser
"Overall, these data led us to hypothesize that OTUB1 hydroxylation by FIH may be a link in the association of FIH with an alteration in cellular metabolism."

sparser
"In our study, we found that N22, the site of OTUB1 hydroxylation by FIH, is located in a region of the protein that may be key to determining its activity."

sparser
"Therefore, a possible contributory mechanism for the anti-inflammatory activity of hydroxylase inhibitors is through altered FIH-dependent hydroxylation of OTUB1, leading to differential metabolism at inflamed sites."

sparser
"These data provide a mechanistic link between FIH-dependent hydroxylation of OTUB1 and alterations in cellular metabolism and contribute a further level of understanding to the vital link between cellular oxygen-sensing mechanisms and the control of cellular metabolism."
HIF hydroxylates OTUB1 on N22. 3 / 3
| 3

sparser
"Following our previous observations of FIH-dependent hydroxylation of OTUB1 on N22 [ xref , xref ], we here investigated the interplay between FIH and OTUB1 in more detail by immunoprecipitation (IP) of endogenous FIH."

sparser
"OTUB1 Is Hydroxylated on N22 by Endogenous FIH."

sparser
"These data are consistent with our hypothesis that FIH-dependent N22 hydroxylation of OTUB1 contributes to the regulation of cellular metabolism by FIH."
SMAD2_3 affects OTUB1
| 6 15
| 6 14

reach
"The TGFbeta induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice (XREF_FIG)."

sparser
"OTUB1 interacts with active SMAD2/3 and impacts TGFβ signalling."

sparser
"Therefore, the association of OTUB1 with phospho-SMAD2/3 would be predicted to prevent SMAD2/3 from being polyubiquitylated and degraded, thereby enhancing TGFβ signalling."

sparser
"These observations imply that SMAD4 is not required for the interaction between OTUB1 and phospho-SMAD2/3."

sparser
"The findings shed light into the molecular mechanisms by which the phospho-SMAD2/3OTUB1 interaction results in the regulation of TGFβ-induced transcription as well as phospho-SMAD2/3 turnover."

sparser
"Despite the phospho-dependent nature of OTUB1 interaction with SMAD2/3, no phospho-interaction motifs within OTUB1 have been reported."

reach
"Despite the phospho dependent nature of OTUB1 interaction with SMAD2/3, no phospho-interaction motifs within OTUB1 have been reported."

reach
"As shown in XREF_FIG, OTUB1 selectively binds components of the active phospho, SMAD2/3, and SMAD4 complex; however, it was not clear whether SMAD4 was required for this interaction."

sparser
"It has been shown that OTUB1 interacts with phosphorylated Smad2/3 at the C-terminus specifically after TGF-β stimulation."

sparser
"Consistent with the notion that OTUB1 interaction could be phospho-SMAD2/3-dependent, dephosphorylation of OTUB1 IPs by λ-phosphatase to dephosphorylate phospho-SMAD2/3 partially abolishes OTUB1SMAD2/3 interaction ( xref )."
| 1

sparser
"The TGFβ-induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice ( xref )."
OTUB1 affects RAS
| 14 5
OTUB1 deubiquitinates RAS.
| 6
OTUB1 leads to the deubiquitination of RAS. 6 / 6
| 6

reach
"OTUB1 inhibits RAS ubiquitination independently of its catalytic activity resulting in sequestration of RAS on the plasma membrane."

reach
"In fact, invitro ubiquitination of RAS was abolished by wt OTUB1, but not by deltaN (1-30) OTUB1-mutant lacking binding to E2 (Fig XREF_FIG A)."

reach
"Consistent with the observation that OTUB1 inhibits RAS ubiquitination, analysis of RAS localization revealed that OTUB1 overexpression augmented the presence of RAS proteins on the plasma membrane (Fig XREF_FIG E and F; XREF_SUPPLEMENTARY)."

reach
"OTUB1 triggers activation of the MAPK pathway by inhibiting RAS ubiquitination."

reach
"Therefore, we tested whether the catalytic activity of OTUB1 is essential to promote RAS de-ubiquitination."

reach
"OTUB1 triggers lung cancer development by inhibiting RAS monoubiquitination."
OTUB1 binds RAS.
| 1 4
| 1 3

sparser
"Using a set of reciprocal immunoprecipitations, we confirmed that OTUB1 interacted with RAS proteins (Fig  xref C–F)."

sparser
"These results strongly indicate that OTUB1 interacts with RAS proteins in a GTP‐independent manner, suggesting that OTUB1 is an upstream regulator of RAS GTPases."

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."

reach
"Consistently with this observation, both inactive GDP bound and active GTP-gamma-S-bound forms of NRAS interacted with OTUB1 (Fig XREF_FIG E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
RAS binds OTUB1 and NRAS. 1 / 1
| 1

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
OTUB1 activates RAS.
| 5
OTUB1 activates RAS. 5 / 6
| 5

reach
"OTUB1 triggers RAS activity and downstream signaling."

reach
"This further confirms that OTUB1 up-regulation may contribute to the development of different tumor types harboring wt RAS."

reach
"Here we found that OTUB1 promotes tumorigenic transformation of wt RAS cells by triggering the RAS and MAPK pathway."

reach
"OTUB1 promotes RAS activation and tumorigenesis in wild-type RAS cells."

reach
"Consistent with the observation that OTUB1 inhibits RAS ubiquitination, analysis of RAS localization revealed that OTUB1 overexpression augmented the presence of RAS proteins on the plasma membrane (Fig XREF_FIG E and F; XREF_SUPPLEMENTARY)."
OTUB1 ubiquitinates RAS.
| 2 1
OTUB1 leads to the ubiquitination of RAS. 2 / 2
| 1 1

reach
"We found that OTUB1 up-regulation contributes specifically to the development of wt KRAS lung adenocarcinomas by inhibiting reversible ubiquitination of RAS proteins."

sparser
"Suppression of OTUB1 with two different shRNAs resulted in increased levels of NRAS monoubiquitination (Fig  xref A), whereas overexpression of wt OTUB1 almost completely abolished ubiquitination of RAS proteins (Fig  xref B–D)."
Modified OTUB1 leads to the ubiquitination of RAS. 1 / 1
| 1

reach
"Suppression of OTUB1 with two different shRNAs resulted in increased levels of NRAS monoubiquitination (Fig XREF_FIG A), whereas overexpression of wt OTUB1 almost completely abolished ubiquitination of RAS proteins (Fig XREF_FIG B-D)."
| 1 14
| 11

reach
"As described in our previous work, Otub1 stabilizes and activates p53 and can induce apoptosis [XREF_BIBR]."

reach
"In addition, OTUB1 also promotes UV induced apoptosis."

reach
"Otub1 promotes UV induced apoptosis that involves MDMX stabilization."

reach
"Together, these results suggest that Otub1 stabilizes MDMX and promotes p53S46P and mitochondria mediated apoptosis, providing an alternative mechanism of Otub1 's role in apoptosis."

reach
"Together, these results suggest that Otub1 also induces mitochondrial mediated apoptosis by stabilizing MDMX and relocalizing it to mitochondria to induce mitochondria mediated apoptosis."

reach
"Consequently, overexpression of Otub1 induces p53 dependent apoptosis and inhibition of cell proliferation whereas knockdown of Otub1 attenuates p53 activation following DNA damage [XREF_BIBR]."

reach
"Also, Otub1 promotes UV-irradiation-induced apoptosis, which can be inhibited by MDMX depletion."

reach
"Taken together, our findings show that OTUB1 induces apoptosis of melanoma cells in vitro, likely by upregulating TRAIL, and suggest that approaches targeting OTUB1 can be developed to provide novel therapeutic strategies for treating melanoma."

reach
"The result showed that AVT drastically reduced the protein level of pro-caspase-3 in both RPMI-8226 and LP1 cells, but it was abolished partly by lentiviral Otub1, suggesting Otub1 expression rescued the apoptosis induced by AVT."

reach
"Furthermore, Otub1 promotes UV-irradiation-induced p53S46P and apoptosis, which can be significantly inhibited by MDMX depletion."
| 1 3

reach
"Inhibition of the Otub1 and c-Maf axis by the herbal acevaltrate induces myeloma cell apoptosis."

reach
"OTUB1 attenuates neuronal apoptosis after intracerebral hemorrhage."

reach
"Combined in vivo and in vitro experiments comprising mice lacking OTUB1 specifically in liver parenchymal cells (OTUB1 LPC-KO) and human OTUB1 deficient HepG2 cells revealed that OTUB1 prevented hepatocyte necroptosis but not apoptosis upon infection with Lm and DGal and TNF challenge."

eidos
"Combined in vivo and in vitro experiments comprising mice lacking OTUB1 specifically in liver parenchymal cells ( OTUB1 LPC-KO ) and human OTUB1-deficient HepG2 cells revealed that OTUB1 prevented hepatocyte necroptosis but not apoptosis upon infection with Lm and DGal / TNF challenge ."
OTUB1 affects TRAF6
2 1 | 11 4
OTUB1 binds TRAF6.
2 | 4 4
2 | 4 1

reach
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus triggered IRF3 and NF-kappaB activation [XREF_BIBR]."

No evidence text available

No evidence text available

reach
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig. 3a)."

sparser
"A20 was shown to directly interact with TRAF6 [48] and the OTU domain is involved in removing K63-linked polyubiquitin chains from TRAF6 [49] ."

reach
"Coimmunoprecipitations indicated OTUB1 and -2 interacted with TRAF3 and TRAF6, two E3 ubiquitin ligases required for virus triggered IRF3 and NF-kappaB activation, respectively."

reach
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63 linked polyubiquitin chains."
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
| 1

sparser
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig.  xref )."
OTUB1 deubiquitinates TRAF6.
1 | 5
OTUB1 deubiquitinates TRAF6. 6 / 6
1 | 5

reach
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus triggered IRF3 and NF-kappaB activation [XREF_BIBR]."

reach
"OTUB1 and OTUB2 regulate virus-triggered IFN inflammation by deubiquitinating TRAF3 and TRAF6 [75]."

reach
"It was also shown that two OTUB deubiquitinating enzyme family members, OTUB1 and OTUB2, can deubiquitinate TRAF3 and TRAF6, leading to the inhibition of virus-induced IFN-β expression and cellular antiviral responses (53)."

"Regulation of virus-triggered signaling by OTUB1- and OTUB2-mediated deubiquitination of TRAF3 and TRAF6"

reach
"It was also shown that two OTUB deubiquitinating enzyme family members, OTUB1 and OTUB2, can deubiquitinate TRAF3 and TRAF6, leading to the inhibition of virus induced IFN-beta expression and cellular antiviral responses."

reach
"OTUB1 and its paralog OTUB2, deubiquitinate TRAF3 and TRAF6 to inhibit virus triggered signaling pathways that ultimately result in IRF3 and NF-kappaB activation [XREF_BIBR]."
OTUB1 inhibits TRAF6.
| 2
OTUB1 inhibits TRAF6. 2 / 3
| 2

reach
"TRAF3 and TRAF6 are both deactivated by the DUbs otubain 1 (OTUB1) and OTUB2, which remove K63 linked polyubiquitin chains."

reach
"TRAF3 and TRAF6 are both deactivated by the DUbs otubain 1 (OTUB1) and OTUB2, which remove K63-linked polyubiquitin chains (Li et al., 2010b) ."
OTUB1 affects MAF
| 3 11 5
OTUB1 binds MAF.
| 7 5
| 7 5

sparser
"In order to explore this concept, we performed a c-Maf-recognition element-driven luciferase-based screen against FDA-approved drugs and natural products, from which the generic cardiac glycoside lanatoside C (LanC) is found to prevent c-Maf de-ubiquitination and induces its degradation by disrupting the interaction of Otub1 and c-Maf."

sparser
"AVT interferes with the interaction between Otub1 and c-Maf to increase c-Maf polyubiquitination."

reach
"In order to explore this concept, we performed a c-Maf-recognition element driven luciferase based screen against FDA approved drugs and natural products, from which the generic cardiac glycoside lanatoside C (LanC) is found to prevent c-Maf de-ubiquitination and induces its degradation by disrupting the interaction of Otub1 and c-Maf."

reach
"AVT disrupts the interaction of Otub1 and c-Maf thus inhibiting Otub1 activity and leading to c-Maf polyubiquitination and subsequent degradation in proteasomes."

reach
"AVT interferes with the interaction between Otub1 and c-Maf to increase c-Maf polyubiquitination."

sparser
"AVT was identified from the Otub1/c-Maf system, while Otub1 interacts with c-Maf and prevents its polyubiquitination as its deubiquitinase, therefore, we wondered whether AVT can inhibit Otub1 activity toward c-Maf ubiquitination."

reach
"Because Otub1 interacts with c-Maf thus preventing its ubiquitination, we next wondered whether AVT interfered with this interaction between Otub1 and c-Maf."

reach
"AVT was identified from the Otub1 and c-Maf system, while Otub1 interacts with c-Maf and prevents its polyubiquitination as its deubiquitinase, therefore, we wondered whether AVT can inhibit Otub1 activity toward c-Maf ubiquitination."

reach
"The above study has demonstrated that AVT could disrupt the interaction between Otub1 and c-Maf therefore inducing c-Maf degradation in proteasomes and MM cell apoptosis."

reach
"It is essential for Otub1 to engage with c-Maf before preventing c-Maf polyubiquitination and degradation via the ubiquitin-proteasomal pathway, however, AVT can disrupt this interaction between Otub1 and c-Maf, which further abolishes the deubiquitinating activity of Otub1 towards c-Maf."
OTUB1 inhibits MAF.
| 1 3
OTUB1 inhibits MAF. 3 / 3
| 1 2

eidos
"As shown in Fig. 2c , Otub1 prevented c-Maf from polyubiquitination , while Nam increased c-Maf ubiquitination and partly rescued the ubiquitination level in the presence of Otub1 ( Fig. 2c ) , suggesting that Nam antagonized Otub1 in terms of c-Maf polyubiquitination ."

reach
"Otub1 abrogates c-Maf K48 linked polyubiquitination thus preventing its degradation and enhancing its transcriptional activity."

reach
"In other words, Otub1 is essential for AVT to inhibit c-Maf activity."
OTUB1 bound to MAF inhibits MAF. 1 / 1
| 1

reach
"The above study has demonstrated that AVT could disrupt the interaction between Otub1 and c-Maf therefore inducing c-Maf degradation in proteasomes and MM cell apoptosis."
OTUB1 activates MAF.
| 2 1
OTUB1 activates MAF. 3 / 3
| 2 1

reach
"Consistent with this finding, overexpression of Otub1 increased c-Maf transcriptional activity, but it was decreased by AVT in a dose dependent manner."

eidos
"Inhibition of Otub1 results in c-Maf degradation and MM cell apoptosis18 ."

eidos
"Because Otub1 is a deubiquitinase of c-Maf and inhibition of Otub1 leads to c-Maf degradation and MM cell death ."
UBE2D1 affects OTUB1
4 | 6 5
UBE2D1 binds OTUB1.
4 | 4 5
4 | 4 5

reach
"Consistently, Otub1 interacts with UbcH5."

reach
"Moreover, we demonstrated the endogenous interactions between OTUB1 and UBE2N or UBE2D1 (XREF_FIG)."

sparser
"Consistently, Otub1 interacts with UbcH5."

reach
"To see if differences in relative stimulation of DUB activity can be attributed to variations in binding affinities, we determined equilibrium dissociation constants (K d) for OTUB1 binding to UBE2D1, UBE2D2, UBE2D3, UBE2N, and UBE2E1 using isothermal titration calorimetry (ITC)."

sparser
"Further, UbcH5 in turn mediates Otub1 monoubiquitination and this monoubiquitination facilitates the Otub1 binding to UbcH5 and likely inhibits ubiquitin chain transfer [ xref ], providing a mechanism underlying the Otub1 inhibition of E2 activity."

sparser
"Furthermore, proteomic analyses indicated that OTUB1 binds to E2s of the UBE2D and UBE2E families including the E2 UbcH5 ( xref ; xref )."

No evidence text available

reach
"Further, UbcH5 in turn mediates Otub1 monoubiquitination and this monoubiquitination facilitates the Otub1 binding to UbcH5 and likely inhibits ubiquitin chain transfer [XREF_BIBR], providing a mechanism underlying the Otub1 inhibition of E2 activity."

sparser
"Importantly, Asp88 was found to be the key residue mediating OTUB1 interaction with UbcH5, since mutation of this residue into alanine prevented their binding and abolished OTUB1 effect on p53 xref ."

No evidence text available
UBE2D1 activates OTUB1.
| 2
UBE2D1 activates OTUB1. 2 / 3
| 2

reach
"Together, these E2 enzymes are in 2.7-fold molar excess over OTUB1 and have a combined concentration of nearly 10 times the EC 50 for UBCH5 stimulation of OTUB1 DUB activity (XREF_FIG)."

reach
"Taken together, our results suggest that OTUB1 should be stimulated by uncharged UBCH5 in cells, and that variations in the ratio of E2 to E2 ~ Ub could be involved in regulating OTUB1 isopeptidase activity."
CK2 affects OTUB1
| 5 11
CK2 phosphorylates OTUB1.
| 4 11
CK2 phosphorylates OTUB1 on S16. 8 / 8
| 2 6

sparser
"Now that we have established that CK2 phosphorylates OTUB1 at Ser 16 , it would be interesting to explore whether small molecule inhibitors of CK2 potentially decrease the infection of host cells by Yersinia."

sparser
"Casein kinase 2 (CK2)-dependent phosphorylation of OTUB1 at Ser16 played a critical role in ODN- and cathepsin K siRNA-mediated p53 stabilization."

reach
"Casein kinase 2 (CK2) phosphorylates the deubiquitylase OTUB1 at Ser16 to trigger its nuclear localization."

sparser
"Casein kinase 2 (CK2) phosphorylates the deubiquitylase OTUB1 at Ser16 to trigger its nuclear localization."

sparser
"In this study, we demonstrated that CK2 phosphorylated OTUB1 at Ser 16 in vitro and in cells, making OTUB1 a bona fide substrate for CK2."

sparser
"Indeed, we provided biochemical, pharmacological and genetic evidence to establish that CK2 phosphorylates OTUB1 at Ser 16 ."

sparser
"CK2 phosphorylates OTUB1 at Ser 16 in vitro."

reach
"Casein kinase 2 (CK2)-dependent phosphorylation of OTUB1 at Ser16 played a critical role in ODN- and cathepsin K siRNA-mediated p53 stabilization."
CK2 phosphorylates OTUB1. 5 / 7
| 5

sparser
"We found that casein kinase 2 (CK2) phosphorylated OTUB1 at Ser(16) to promote its nuclear accumulation in cells."

sparser
"OTUD5/DUBA required activation by phosphorylation in the OTU domain by recombinant CK2 to display reactivity ( xref )."

sparser
"Subsequent investigation determined that CK2 phosphorylates OTUB1 at S16 and that this triggers OTUB1 nuclear localization ( xref )."

sparser
"To investigate whether phosphorylation of OTUB1 by CK2 affects OTUB1 DUB activity, we set up a time course of deubiquitylation with OTUB1 and CK2-phosphorylated OTUB1 using K48-linked di-ubiquitin molecules as substrates ( xref )."

sparser
"Phosphorylation of OTUB1 by casein kinase 2 (CK2) causes nuclear translocation for DNA damage repair [ xref ]."
CK2 phosphorylates OTUB1 on serine. 2 / 2
| 2

reach
"We found that casein kinase 2 (CK2) phosphorylated OTUB1 at Ser (16) to promote its nuclear accumulation in cells."

reach
"Pharmacological inhibition or genetic ablation of CK2 blocked the phosphorylation of OTUB1 at Ser (16), causing its nuclear exclusion in various cell types."
CK2 activates OTUB1.
| 1
CK2 activates OTUB1. 1 / 1
| 1

reach
"On the other hand, the lack of effect of high OTUB1 expression levels on patients ' survival could be further explained by the alternative interactions of OTUB1 beyond RAS that for instance were reported to lead to the stabilization of p53 (Sun etal, 2012) or CK2 mediated OTUB1 nuclear translocation to affect DNA repair (Herhaus etal, 2015)."
OTUB1 affects DCN
| 10 6
OTUB1 binds DCN.
| 5 6
| 5 6

sparser
"In this work, we not only confirmed the overexpression of OTUB1 in diseased glomeruli, but also demonstrated that OTUB1 could interact with DCN and promote DCN degradation."

sparser
"Further immunoprecipitation studies were performed to investigate the interaction between OTUB1 and DCN in MC."

sparser
"Furthermore, on mass spectrometric analysis of immunoprecipitation gels using DCN-antibody, we found that OTUB1was highly expressed in MC (data not shown), which suggested a possible interaction of OTUB1 with DCN."

reach
"In this work, we not only confirmed the overexpression of OTUB1 in diseased glomeruli, but also demonstrated that OTUB1 could interact with DCN and promote DCN degradation."

reach
"Further immunoprecipitation studies were performed to investigate the interaction between OTUB1 and DCN in MC."

reach
"OTUB1 could interact with DCN in MC."

reach
"The immunoprecipitation assay demonstrated that OTUB1 interacted with DCN."

sparser
"These results indicate that OTUB1 does interact with DCN and promote the process of DCN ubiquitination and degradation."

sparser
"The immunoprecipitation assay demonstrated that OTUB1 interacted with DCN."

reach
"These results indicate that OTUB1 does interact with DCN and promote the process of DCN ubiquitination and degradation."
OTUB1 ubiquitinates DCN.
| 3
Modified OTUB1 leads to the ubiquitination of DCN. 3 / 3
| 3

reach
"It was further validated by the experiment that overexpression of OTUB1 increased the ubiquitination of DCN in MC."

reach
"Here we further demonstrated that OTUB1 overexpression induced by gene transfection or by inflammatory stimulation could increase the DCN ubiquitination and proteolysis in MC."

reach
"The overexpression of OTUB1 promoted DCN ubiquitination and degradation, which may contribute to the pathogenesis of glomerulonephritides."
OTUB1 decreases the amount of DCN.
| 2
Modified OTUB1 decreases the amount of DCN. 2 / 2
| 2

reach
"OTUB1 overexpression downregulated expression of DCN in MC."

reach
"The data indicated that OTUB1 overexpression could induce a decrease of the DCN level in rat MC."
OTUB1 affects TGFB
| 12 1
OTUB1 activates TGFB.
| 9
OTUB1 activates TGFB. 8 / 10
| 8

reach
"OTUB1 has been found to modulate TGFbeta signalling by promoting the stabilization of only the phosphorylated form of SMAD2/3 [98]."

reach
"OTUB1, a member of ovarian tumor domain protease (OTU) family of DUBs, is confirmed to play an important role in the TGF-β-mediated gene transcription and cellular migration and enhance TGF-β signaling by inhibiting the ubiquitylation and degradation of phospho-SMAD2/3 [24]."

reach
"These results suggest that Otub1 enhances TGFbeta induced transcriptional responses."

reach
"However, different from USP15, OTUB1 enhances TGF-beta signaling by inhibiting the ubiquitination and degradation of active SMAD2/3 (and not the inactive un phosphorylated form), because the association of OTUB1 to SMAD2/3 is phosphorylation dependent."

reach
"The inhibition of OTUB1 attenuated the TGF-β1-induced inflammation and remodeling."

reach
"Our findings indicate that OTUB1 modulates TGFbeta induced transcriptional responses."

reach
"The Interaction of OTUB1 and TRAF3 Mediates NLRP3 Inflammasome Activity to Regulate TGF-β1-induced BEAS-2B Cell Injury."

reach
"OTUB1 activates TGF-beta signaling via activating (phospho-) SMAD2/3."
Ubiquitinated OTUB1 activates TGFB. 1 / 1
| 1

reach
"In contrast, OTU domain, ubiquitin aldehyde binding 1 (OTUB1), B-cell lymphoma-3 (BCL-3), ubiquitin carboxyl-terminal hydrolase 1 (UCHL1), and UCHL5 contribute to the deubiquitination of SMAD2 or SMAD3, making them more stable and less easily degradable and promoting TGF-beta signaling [XREF_BIBR - XREF_BIBR]."
OTUB1 increases the amount of TGFB.
| 3
OTUB1 increases the amount of TGFB. 3 / 3
| 3

reach
"OTUB1 enhances TGFbeta mediated gene transcription."

reach
"However, we must acknowledge that we did not make a long term follow-up and survival analysis, since most patients accepted varieties of postoperative chemotherapy schemes, including traditional Chine[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

reach
"We tested whether the catalytic activity of OTUB1, its ability to inhibit ubiquitylation of SMAD2/3 or its ability to interact with SMAD3 are essential to enhance TGFbeta induced transcription."
OTUB1 binds TGFB.
| 1
| 1

sparser
"The TGFβ-induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice ( xref )."
| 13

reach
"There may be a variety of mechanisms involved in OTUB1 promoting the metastasis of colorectal cancer."

reach
"OTUB1 promotes metastasis and serves as a marker of poor prognosis in colorectal cancer."

reach
"These data suggest that OTUB1‐isoform2 promotes ovarian tumour growth and metastasis in vivo.4 DISCUSSION."

reach
"In this sense, OTUB1 may promote colon cancer proliferation, metastasis and recurrence through TGFbeta signal pathway."

reach
"OTUB1 promotes CRC metastasis by facilitating EMT and acts as a potential distant metastasis marker and prognostic factor in CRC."

reach
"Recently, OTUB1 was demonstrated to promote the metastasis of esophageal cancer by stabilizing Snail."

reach
"OTUB1 promotes esophageal squamous cell carcinoma metastasis through modulating Snail stability."

reach
"These results revealed that OTUB1 promoted CRC cell liver metastasis in vivo."

reach
"OTUB1 also promoted the metastasis of CRC cell lines in vitro and in vivo by regulating EMT."

reach
"OTUB1 contributes to drug resistance and promotes metastasis."
UBE2 affects OTUB1
| 9
| 9

sparser
"These observations reveal a novel role for OTUB1 binding to E2 ubiquitin-conjugating enzymes in regulating E2 stability within the cell."

sparser
"Mass spectrometry-proteomic studies have revealed that OTUB1 interacts with six other E2 enzymes in cells: UBE2D1 (UbcH5a), UBE2D2 (UbcH5b), UBE2D3 (UbcH5c), UBE2E1 (UbcH6), UBE2E2 (UbcH8), and UBE2E3 (UbcH9 or UbcM2) xref , xref ."

sparser
"Mass spectrometry studies have revealed that OTUB1 can form complexes with several other E2s in cells, including UBE2E1 (UBCH6), UBE2E2 (UBCH8), and UBE2E3 (UBCH9), in addition to UBE2N (UBC13) and the UBCH5 (UBE2D1, -2, and -3) isoforms ( xref , xref )."

sparser
"In order to verify that the OTUB1 C91S mutation did not affect binding to E2 enzymes, we measured binding of a subset of E2s (UBE2D1 and UBE2D3) to wild-type OTUB1 and found no significant difference in K d values ( xref )."

sparser
"Likewise, binding of uncharged E2s to OTUB1 stimulates OTUB1 cleavage of K48-linked substrates [ xref ]."

sparser
"Further characterization of this mechanism demonstrated that OTUB1 directly binds and consequently inhibits a related subclass of E2 enzymes that include UBC13, the only known E2 that cooperates with RNF168 during the DNA damage response xref , xref ."

sparser
"An in vitro study showed that binding of an uncharged E2 enzyme to OTUB1 can stimulate cleavage of polyubiquitin by stabilizing N-terminal ubiquitin-binding helix to fold which then comprises the proximal ubiquitin-binding site xref ."

sparser
"We have demonstrated that OTUB1 binds to phospho-SMAD2/3 and E2 ubiquitin-conjugating enzymes, thereby inhibiting the polyubiquitylation of SMAD2/3 in vitro."

sparser
"Substitution of the active site cysteine with serine (C91S) inactivates OTUB1 ( xref ), whereas a T134R substitution abrogates OTUB1 binding to E2 ubiquitin-conjugating enzymes ( xref , xref ), thereby disrupting the ability of OTUB1 to prevent ubiquitin transfer."
OTUB1 affects MAPK
| 11
OTUB1 activates MAPK. 10 / 14
| 11

reach
"Stimulation of OTUB1-competent BMDCs with both TgPFN and LPS resulted in increased p38, ERK1/2, and JNK phosphorylation compared to that in OTUB1-deficient BMDCs (Supplementary Fig. 2g, h), demonstrating that OTUB1 augments the activation of both NF-κB and MAPKs upon the engagement of TLR4 and TLR11/12."

reach
"First, OTUB1 promotes hyperactivation of the MAPK cascade only when overexpressed in a wt RAS background."

reach
"We also did not observe OTUB1 induced hyperactivation of the MAPK kinase pathway when we overexpressed a dominant negative KRAS S17N-mutant, indicating that the effect of OTUB1 overexpression is RAS dependent (XREF_SUPPLEMENTARY)."

reach
"Furthermore, knockdown of OTUB1 reduces TWEAK induced activation of canonical NF-kappaB and MAPK signalling pathways and modulates TWEAK induced gene expression."

reach
"Here we found that OTUB1 promotes tumorigenic transformation of wt RAS cells by triggering the RAS and MAPK pathway."

reach
"OTUB1 overexpression in the H1993 cell line harboring wt KRAS led to a higher and more sustained activation of ERK1/2 phosphorylation (Fig XREF_FIG A), whereas the introduction of OTUB1 into KRAS-mutant A549 cells only slightly increased the activity of the MAPK pathway (Fig XREF_FIG B)."

reach
"Consistently with our observation that OTUB1 overexpression induces the MAPK cascade activation in cells with wt RAS, we found that higher levels of OTUB1 significantly correlated with increased levels of ERK1/2 phosphorylation in lung adenocarcinomas harboring wt KRAS (Pearson 's coefficient : 0.352; P-value : 0.013) (Fig XREF_FIG D and E), while mutant KRAS tumors exhibited in general higher levels of ERK1/2 phosphorylation (Fig XREF_FIG D and E)."

reach
"We observed a similar overactivation of the MAPK pathway, when we overexpressed catalytically inactive OTUB1 C91S-mutant, indicating that catalytic activity of OTUB1 is not necessary to induce the MAPK pathway activation (Fig XREF_FIG F)."

reach
"Given that OTUB1 overexpression up-regulated the MAPK pathway, but did not affect AKT signaling, we hypothesized that OTUB1 could cooperate with myristoylated (myr) and therefore the constitutively active allele of AKT1 (myr-AKT) to promote cell transformation."

reach
"Hyperactivation of the MAPK signaling by OTUB1 overexpression suggests that OTUB1 overexpression may promote tumorigenic transformation."
OTUB1 affects HIF
| 14
| 10

sparser
"These results show that OTUB1 maintains its enzymatic activity within the heterotrimeric complex with FIH, but the important regulation of its activity by the E2 enzyme UBCH5B is inverted, demonstrating a functional effect of FIH:FIH-OTUB1 HT formation."

sparser
"The FIH-OTUB1 heterodimer forms co-translationally and is extraordinarily stable."

sparser
"FIH and OTUB1 form a covalently linked protein complex."

sparser
"We observed that the formation of the FIH-OTUB1 heterodimer is slow (within the range of several hours) combined with slow degradation kinetics (up to 24 h)."

sparser
"This demonstrated that UBCH5B had the opposite effect on OTUB1 activity when OTUB1 was bound by FIH (forming the HT) than on monomeric OTUB1."

sparser
"FIH-dependent FIH-OTUB1 heterodimer formation is a hypoxia-regulated mechanism."

sparser
"We show evidence for an unexpected formation of a previously unknown strong, likely covalent, interaction between FIH and OTUB1."

sparser
"We next used the interaction of FIH with OTUB1 as additional positive control [ xref ] and confirmed this interaction in the case of OTUB1 WT in the interactome experiment and also subsequently by western blot analysis (Figs xref and xref )."

sparser
"We previously showed that the cellular oxygen sensor factor-inhibiting HIF (FIH) interacts with OTUB1 [ xref , xref , xref , xref ] and hydroxylates asparagine 22, affecting OTUB1 substrate targeting and cellular energy metabolism [ xref ]."

sparser
"The input as well as the FLAG-specific IPs showed that beside N22 also C23 mutation abrogated both the HD and the non-covalent FIH:OTUB1 interaction, while mutations of S16 and/or S18 decreased the HD and the FIH:OTUB1 interaction by roughly 50% ( xref )."
HIF binds OTUB1 and HTT. 4 / 4
| 4

sparser
"Interestingly, purified FIH and OTUB1 did not form the HD under cell-free conditions (data not shown)."

sparser
"Taken together, our results demonstrate that FIH catalyses HD formation with OTUB1, which is remarkably sensitive to changes in oxygen availability within the physiologically relevant range, suggesting a function in oxygen-dependent signaling."

sparser
"The covalent FIH-OTUB1 HD formation may represent an alternative molecular mechanism for the cellular adaptation to oxygen changes over longer time periods, linking oxygen sensing and deubiquitinase activity."

sparser
"However, peptides corresponding to the suspected regions of FIH-OTUB1 HD formation could not be detected by MS, which is likely due to the unknown molecular weight of these unique peptides, and excludes a direct examination of the nature of the FIH-OTUB1 bond."
RNF128 affects OTUB1
3 1 | 4 5
3 | 4 3

reach
"Otubain-1 and ARF1 both bind GRAIL, but they have opposite effects in regulating the self ubiquitylation and degradation of GRAIL."

sparser
"GRAIL and Otub1 interactions were originally identified in a yeast two-hybrid screen using a human genomic library ( xref )."

sparser
"Another DUB, Otub1 interacts with GRAIL and regulates the delicate balance between immune activation and anergy. xref WB analysis revealed decreased Otub1 expression in ManLAM‐treated activated CD4 + T cells."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available

No evidence text available

reach
"GRAIL and Otub1 interactions were originally identified in a yeast two-hybrid screen using a human genomic library."

reach
"Another DUB, Otub1 interacts with GRAIL and regulates the delicate balance between immune activation and anergy.38 WB analysis revealed decreased Otub1 expression in ManLAM treated activated CD4 + T cells."

No evidence text available

reach
"After T cell activation, Otubain1 binds Grail and inhibits its deubiquitination, leading to Grail degradation."
1 | 2

sparser
"Otub1 forms a trimolecular complex with USP8 and GRAIL, and upregulated Otub1 promotes GRAIL's proteosomal degradation."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available
| 13
| 13

reach
"The results confirmed that OTUB1 promoted EMT in endometriosis, which is consistent with our previous findings (Figures 8G and 8H)."

reach
"In conclusion, OTUB1 promotes glycolysis in endometriosis cells."

reach
"In this study, OTUB1 enhanced the proliferation, migration, and invasion of endometriosis cells."

reach
"In addition, OTUB1 enhances glycolysis and epithelial-mesenchymal transition of endometriosis cells, leading to promote proliferation, migration, and invasion of endometriosis cells."

reach
"In summary, OTUB1 promotes the development of endometriosis by up-regulating HSF1."

reach
"Together, OTUB1 promotes epithelial-mesenchymal transition in endometriosis cells."

reach
"In this study, we demonstrate that OTUB1 promotes the development of endometriosis via deubiquitination of HSF1."

reach
"The results showed that OTUB1 deletion inhibited the growth of endometriosis lesions.In summary, our study identifies a HSF1 new binding partner-OTUB1, which promotes its protein stability via deubiquitination."

reach
"We also find that OTUB1 promotes the growth and invasion of endometriosis cells."

reach
"Thus, the knockdown of OTUB1 inhibits the development of endometriosis in vivo."
UBD affects OTUB1
| 3 7
UBD binds OTUB1.
| 2 6
| 2 6

reach
"Furthermore, the non covalent interaction between FAT10 and OTUB1 not only enhances its isopeptidase activity towards K48 linked ubiquitin moieties but also strengthens its non catalytic activity in reducing K63 polyubiquitylation of its target protein TRAF3."

sparser
"Unexpectedly, the prominent non-covalent binding of FAT10 to OTUB1 leads to both the activation of the deubiquitylating activity of OTUB1 and the non-enzymatic inhibition of E2 enzymes."

sparser
"In the absence of a structure of OTUB1 bound to Lys48 diubiquitin and E2, we took advantage of the observation that the two ubiquitins bound to the proximal and distal sites of OTUB1 mimic the binding of Lys48 diubiquitin xref , xref to examine the structural effect of E2 binding on the N-terminal ubiquitin binding helix of OTUB1."

sparser
"In the absence of E2, we found that OTUB1 binds K48 diubiquitin with a K d of 84 μM ( xref ), which is within the range of K M values reported here ( xref ) and previously xref , xref ."

sparser
"This structure was therefore used as a model for OTUB1 bound to a true Lys48-linked diubiquitin substrate and UBCH5B."

sparser
"We determined equilibrium dissociation constants for OTUB1 (C91S) binding to K48 diubiquitin in the presence of UBE2D1, UBE2D3, and UBE2N ( xref – xref ; thermodynamic parameters listed in xref )."

sparser
"In particular, it was shown that FAT10 binding to either wild-type OTUB1 or the enzymatically inactive C91S variant of OTUB1 downregulated the poly-ubiquitylation of TRAF3 in cells, and this effect was especially prominent for ubiquitin chains linked via the lysine residue 63 of ubiquitin (K63) [ xref ]."

reach
"This approach allowed us to directly measure K48 diubiquitin binding to the OTUB1 : E2 complex without dilution of the E2."
UBD activates OTUB1.
| 1 1
UBD activates OTUB1. 2 / 2
| 1 1

reach
"Importantly, all of these values are up to almost an order of magnitude lower than the K d of each E2 for OTUB1 in the absence of diubiquitin, highlighting the potential for K48 polyubiquitin chains to drive association of OTUB1 with its E2 partners at E2 concentrations on the order of 1 muM or less (XREF_FIG)."

sparser
"Further Down the Interferon Induction Cascade: FAT10 Activates the Deubiquitylating Enzyme OTUB1."
TP53 affects OTUB1
5 | 1 6
5 | 1 6

No evidence text available

No evidence text available

sparser
"Biochemical interrogation into the OTUB1-P53 interaction revealed that OTUB1 binds to the DNA binding domain of P53 and P53 interacts with the N- and C-termini of OTUB1."

reach
"OTUB1, another cytoplasmic DUB, can directly interact with p53, but predominantly stabilises p53 indirectly in the cytoplasm, through a non catalytic mechanism."

sparser
"OTUB1 interacts with p53 and is required for p53 induction in response to DNA damage and p53-dependent apoptosis as well as cell growth inhibition."

sparser
"In detail, OTUB1 could directly bind P53 and deubiquitinates it, which may further improve the stability of P53 mediated by OTUB1, and thus influencing the response to DNA damage and the damaged-regulated autophagy induced by P53."

sparser
"OTUB1, another cytoplasmic DUB, can directly interact with p53, but predominantly stabilises p53 indirectly in the cytoplasm, through a non-catalytic mechanism."

No evidence text available

No evidence text available

sparser
"Specifically, OTUB1 can directly bind to TP53, thereby regulating the apoptosis process of cells and promoting the expression of apoptotic genes."
OTUB1 affects SMAD3
3 1 | 5 3
OTUB1 binds SMAD3.
3 | 3 3
3 | 3 1

reach
"The interaction of HA-OTUB1 and mutants with FLAG-SMAD3 is not influenced in the absence or presence of transfected HA-ubiquitin (XREF_SUPPLEMENTARY)."

reach
"This potentially explains the interaction between HA-OTUB1 and FLAG-SMAD3 under overexpression conditions even in the absence of TGFbeta (XREF_FIG and XREF_SUPPLEMENTARY)."

sparser
"To verify the ligand inducible interaction between OTUB1 and SMAD3 at the endogenous level, OTUB1 was immunoprecipitated from human keratinocyte HaCaT cell extracts."

reach
"To verify the ligand inducible interaction between OTUB1 and SMAD3 at the endogenous level, OTUB1 was immunoprecipitated from human keratinocyte HaCaT cell extracts."

No evidence text available

No evidence text available

No evidence text available

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
OTUB1 deubiquitinates SMAD3.
1 | 2
OTUB1 deubiquitinates SMAD3. 3 / 3
1 | 2

reach
"OTUB1 could not directly de-ubiquitinate Smad2 and Smad3, while its effect is dependent on regulating ubiquitin E2 conjugating-enzyme activity."

"OTUB1 enhances TGFbeta signalling by inhibiting the ubiquitylation and degradation of active SMAD2/3."

reach
"OTUB1 prevents SMAD3 ubiquitylation."
OTUB1 affects RNF168
| 10
OTUB1 deubiquitinates RNF168.
| 4
OTUB1 leads to the deubiquitination of RNF168. 4 / 4
| 4

reach
"Finally, the DUB OTUB1 inhibits RNF168 mediated ubiquitylation in a non catalytic fashion by binding to UBC13 and inhibiting the formation of Lys63 linked poly-ubiquitin chains [35 **]."

reach
"It has been reported that OTUB1 suppresses RNF168 dependent poly-ubiquitination by binding to and inhibiting UBC13, but independently of OTUB1 catalytic activity as a deubiquitinating enzyme (Nakada e[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

reach
"Indeed, the ability of OTUB1 to inhibit RNF168 dependent ubiquitylation is independent of its catalytic activity, and is instead mediated by its binding to and inhibition of the E2 UBC13, which cooperates with RNF168, suggesting that E2 regulation could also represent a means to regulate the DDR pathway."

reach
"Remarkably, the ability of OTUB1 to inhibit RNF168 dependent ubiquitylation was independent of its catalytic activity, suggesting an unusual mechanism of action."
OTUB1 inhibits RNF168.
| 2
OTUB1 inhibits RNF168. 2 / 3
| 2

reach
"OTUB1 inhibits both RNF168 stimulated formation of free polyubiquitin chains as well as the chains produced by the basal activity of Ubc13 itself."

reach
"OTUB1 inhibits the RNF168 E2 enzyme UBE2N (and probably also other E2s) independently of its de-ubiquitylating activity [XREF_BIBR, XREF_BIBR]."
OTUB1 binds RNF168.
| 1
| 1

reach
"Instead, OTUB1 binds and inhibits the RNF168 associated E2s (UBC13 and UBE2N and E2s of the UBE2D and UBE2E families) through assembly of a pseudocleavage product in its catalytic site (Juang et al., [MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"
OTUB1 activates RNF168.
| 2
OTUB1 activates RNF168. 2 / 2
| 2

reach
"This suggests that the formation of DNA damage induced poly-ubiquitin chains is continually suppressed by OTUB1, possibly to prevent hyper-activation of the RNF8 and RNF168 response [35 **]."

reach
"revealed that OTUB1 negatively regulates the DDR by inhibiting the RNF168 pathway and showed that depletion of the negative DDR regulator is able to partially rescue the suppressed IR induced 53BP1 focus formation caused by ATM inhibitor."
OTUB1 ubiquitinates RNF168.
| 1
OTUB1 leads to the ubiquitination of RNF168. 1 / 1
| 1

reach
"A recent immunoprecipitation-MS study found that OTUB1, a DUB associated with Ubc13, suppresses RNF168 dependent ubiquitination and inhibits the DNA damage response."
MAF affects OTUB1
| 7 5
| 7 5

sparser
"In order to explore this concept, we performed a c-Maf-recognition element-driven luciferase-based screen against FDA-approved drugs and natural products, from which the generic cardiac glycoside lanatoside C (LanC) is found to prevent c-Maf de-ubiquitination and induces its degradation by disrupting the interaction of Otub1 and c-Maf."

sparser
"AVT interferes with the interaction between Otub1 and c-Maf to increase c-Maf polyubiquitination."

reach
"In order to explore this concept, we performed a c-Maf-recognition element driven luciferase based screen against FDA approved drugs and natural products, from which the generic cardiac glycoside lanatoside C (LanC) is found to prevent c-Maf de-ubiquitination and induces its degradation by disrupting the interaction of Otub1 and c-Maf."

reach
"AVT disrupts the interaction of Otub1 and c-Maf thus inhibiting Otub1 activity and leading to c-Maf polyubiquitination and subsequent degradation in proteasomes."

reach
"AVT interferes with the interaction between Otub1 and c-Maf to increase c-Maf polyubiquitination."

sparser
"AVT was identified from the Otub1/c-Maf system, while Otub1 interacts with c-Maf and prevents its polyubiquitination as its deubiquitinase, therefore, we wondered whether AVT can inhibit Otub1 activity toward c-Maf ubiquitination."

reach
"Because Otub1 interacts with c-Maf thus preventing its ubiquitination, we next wondered whether AVT interfered with this interaction between Otub1 and c-Maf."

reach
"AVT was identified from the Otub1 and c-Maf system, while Otub1 interacts with c-Maf and prevents its polyubiquitination as its deubiquitinase, therefore, we wondered whether AVT can inhibit Otub1 activity toward c-Maf ubiquitination."

reach
"The above study has demonstrated that AVT could disrupt the interaction between Otub1 and c-Maf therefore inducing c-Maf degradation in proteasomes and MM cell apoptosis."

reach
"It is essential for Otub1 to engage with c-Maf before preventing c-Maf polyubiquitination and degradation via the ubiquitin-proteasomal pathway, however, AVT can disrupt this interaction between Otub1 and c-Maf, which further abolishes the deubiquitinating activity of Otub1 towards c-Maf."
MiR-542-3p affects OTUB1
| 11
MiR-542-3p decreases the amount of OTUB1.
| 4
Modified miR-542-3p decreases the amount of OTUB1. 2 / 2
| 2

reach
"Overexpression of miR-542-3p significantly decreased OTUB1 mRNA levels and OTUB1 protein levels in cells (XREF_FIG)."

reach
"Additionally, OTUB1 expression levels were inversely correlated with miR-542-3p expression levels in tumor tissues, and in KYSE150 cells, overexpression of miR-542-3p decreased OTUB1 expression."
MiR-542-3p decreases the amount of OTUB1. 2 / 2
| 2

reach
"Expression of OTUB1 is repressed by miR-542-3p in esophageal cancer cells."

reach
"For example, miR-542-3p expressions are greatly down-regulated in esophageal cancer, and miR-542-3p can inhibit the migration and aggressiveness of esophageal cancer cells by inhibiting OTUB1 expression [17]; in osteosarcoma, miR-542-3p can curb cell proliferative, migrative and aggressive abilities via targeting ILK [18]; in ovarian cancer, miR-542-3p can target CDK14 to inhibit tumorigenesis [19]; in bladder cancer, importantly, miR-542-3p expression is significantly impaired, and this miRNA can inhibit the viability of BC cells [20]."
MiR-542-3p inhibits OTUB1.
| 3
MiR-542-3p inhibits OTUB1. 3 / 3
| 3

reach
"These data demonstrated that miR-542-3p may negatively regulate OTUB1 in esophageal cancer cells."

reach
"Western blotting and reverse transcription-quantitative PCR (RT-qPCR) data indicated that OTUB1 was negatively regulated by miR-542-3p in esophageal cancer cells."

reach
"In KYSE150 human esophageal squamous cell carcinoma cells, overexpression of miR-542-3p significantly decreased OTUB1 at mRNA and protein levels, whereas downregulation of miR-542-3p significantly increased OTUB1 expression."
MiR-542-3p increases the amount of OTUB1.
| 2
MiR-542-3p increases the amount of OTUB1. 2 / 2
| 2

reach
"In KYSE150 human esophageal squamous cell carcinoma cells, overexpression of miR-542-3p significantly decreased OTUB1 at mRNA and protein levels, whereas downregulation of miR-542-3p significantly increased OTUB1 expression."

reach
"To confirm whether miR-542-3p directly regulated OTUB1 expression, dual-luciferase reporter assay was performed in KYSE150 cells."
MiR-542-3p binds OTUB1.
| 2
OTUB1 binds miR-542-3p. 2 / 2
| 2

reach
"To further study the regulatory association between OTUB1 and miR-542-3p, miR-542-3p mimic was used to elevate miR-542-3p expression in KYSE150 cells."

reach
"These data suggested that miR-542-3p may bind directly to the putative binding site in 3 ' UTR of OTUB1 to repress its expression."
TRAF6 affects OTUB1
2 | 4 4
2 | 4 1

reach
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus triggered IRF3 and NF-kappaB activation [XREF_BIBR]."

No evidence text available

No evidence text available

reach
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig. 3a)."

sparser
"A20 was shown to directly interact with TRAF6 [48] and the OTU domain is involved in removing K63-linked polyubiquitin chains from TRAF6 [49] ."

reach
"Coimmunoprecipitations indicated OTUB1 and -2 interacted with TRAF3 and TRAF6, two E3 ubiquitin ligases required for virus triggered IRF3 and NF-kappaB activation, respectively."

reach
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63 linked polyubiquitin chains."
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
| 1

sparser
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig.  xref )."
TRAF3 affects OTUB1
2 | 4 5
2 | 4 3

sparser
"Besides, the interaction between OTUB1 and TRAF3 was detected by Co-IP and ubiquitination assays."

reach
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus triggered IRF3 and NF-kappaB activation [XREF_BIBR]."

sparser
"Co-IP showed that overexpression of HSCARG enhanced the interaction of TRAF3 with OTUB1, whereas in HSCARG −/− cells, this association was severely attenuated ( xref )."

No evidence text available

reach
"Besides, the interaction between OTUB1 and TRAF3 was detected by Co-IP and ubiquitination assays."

reach
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63 linked polyubiquitin chains."

No evidence text available

reach
"Coimmunoprecipitations indicated OTUB1 and -2 interacted with TRAF3 and TRAF6, two E3 ubiquitin ligases required for virus triggered IRF3 and NF-kappaB activation, respectively."

sparser
"The Interaction of OTUB1 and TRAF3 Mediates NLRP3 Inflammasome Activity to Regulate TGF-β1-induced BEAS-2B Cell Injury."
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
| 11

eidos
"OTUB1 Promotes Progression and Proliferation of Prostate Cancer via Deubiquitinating and Stabling Cyclin E1 Background : Prostate cancer ( PCa ) is currently the most common cancer among males worldwide ."

eidos
"Discussion In our research , we found that the expression levels of OTUB1 are up-regulated in PCa , OTUB1 could promote the proliferation and progression of PCa via deubiquitinating and stabling the expression of Cyclin E1 protein ."

eidos
"We finally determined that OTUB1 promotes the proliferation and progression of PCa via deubiquitinating and stabling Cyclin E1 ."

eidos
"Although we have found that otub1 promoted the proliferation and progression of PCa via mediating and stabling Cyclin E1 , in which one ubiquitination enzyme directly causing to the ubiquitination degradation of Cyclin E1 remains unclear , and the manner of OTUB1 regulating the expression of Cyclin E1 directly or indirectly are still yet not determined ."

eidos
"So far , we have a lot of evidence to identify the hypothesis that OTUB1 promotes the progression and proliferation of prostate cancer via mediating and stabling Cyclin E1 ."

eidos
"These results suggested that OTUB1 might promote the proliferation of PCa via mediating Cyclin E1 ."

eidos
"Conclusions : Our findings reveal the critical role of OTUB1 in PCa , and OTUB1 promotes the proliferation and progression of PCa via deubiquitinating and stabilizing Cyclin E1 ."

eidos
"OTUB1 promotes prostate cancer [ 12 ] ."

eidos
"And we further found that OTUB1 promoted the progression of PCa via regulating the stability and interacting with Cyclin E1 ."

eidos
"Therefore , this research preliminarily proposed that OTUB1 could promote the progression and proliferation of PCa via regulating the expression of Cyclin E1 , thus the specific internal mechanism will become the main work and direction in the next step ."
DCN affects OTUB1
| 5 6
| 5 6

sparser
"In this work, we not only confirmed the overexpression of OTUB1 in diseased glomeruli, but also demonstrated that OTUB1 could interact with DCN and promote DCN degradation."

sparser
"Further immunoprecipitation studies were performed to investigate the interaction between OTUB1 and DCN in MC."

sparser
"Furthermore, on mass spectrometric analysis of immunoprecipitation gels using DCN-antibody, we found that OTUB1was highly expressed in MC (data not shown), which suggested a possible interaction of OTUB1 with DCN."

reach
"In this work, we not only confirmed the overexpression of OTUB1 in diseased glomeruli, but also demonstrated that OTUB1 could interact with DCN and promote DCN degradation."

reach
"Further immunoprecipitation studies were performed to investigate the interaction between OTUB1 and DCN in MC."

reach
"OTUB1 could interact with DCN in MC."

reach
"The immunoprecipitation assay demonstrated that OTUB1 interacted with DCN."

sparser
"These results indicate that OTUB1 does interact with DCN and promote the process of DCN ubiquitination and degradation."

sparser
"The immunoprecipitation assay demonstrated that OTUB1 interacted with DCN."

reach
"These results indicate that OTUB1 does interact with DCN and promote the process of DCN ubiquitination and degradation."
OTUB1 affects ubiquitination
| 8
OTUB1 inhibits ubiquitination. 8 / 10
| 8

sparser
"A study from 2012 found that OTUB1 non-canonically inhibits MDM2-mediated ubiquitination of P53 to promote its stabilization ( xref )."

sparser
"Consistent with the observation that OTUB1 inhibits RAS ubiquitination, analysis of RAS localization revealed that OTUB1 overexpression augmented the presence of RAS proteins on the plasma membrane (Fig  xref E and F; xref )."

sparser
"While the authors determined S16 phosphorylation does not affect the DUB or non-canonical activities of OTUB1, they did demonstrate that cytoplasmic localization was required for OTUB1 to inhibit chromatin ubiquitination in response to DNA damage."

sparser
"Further studies revealed that endogenous OTUB1 can inhibit the ubiquitination of phosphorylated Smad2/3 and prevent its proteasomal degradation ( Fig. 4 )."

sparser
"Investigation into the biological mechanism revealed that OTUB1 inhibits NEDD4L-mediated ubiquitination of SMAD2 and SMAD3 in a manner dependent on lysine residue K17 and the N-terminus of OTUB1."

sparser
"In this study, we show that Otub1 inhibits MDM2-mediated MDMX ubiquitination, leading to the stabilization of MDMX, its accumulation in mitochondria and the cytosol, p53 S46 phosphorylation, and mitochondria-mediated apoptosis."

sparser
"In addition to USP 3 and 44, the ovarian tumor deubiquitinase ubiquitin aldehyde binding 1 (OTUB1) interferes with the interaction between RNF168 and UBC13 and inhibits H2A ubiquitination ( xref )."

sparser
"OTUB1 inhibits RAS ubiquitination independently of its catalytic activity resulting in sequestration of RAS on the plasma membrane."
OTUB1 affects UBD
| 2 6
| 2 6

reach
"Furthermore, the non covalent interaction between FAT10 and OTUB1 not only enhances its isopeptidase activity towards K48 linked ubiquitin moieties but also strengthens its non catalytic activity in reducing K63 polyubiquitylation of its target protein TRAF3."

sparser
"Unexpectedly, the prominent non-covalent binding of FAT10 to OTUB1 leads to both the activation of the deubiquitylating activity of OTUB1 and the non-enzymatic inhibition of E2 enzymes."

sparser
"In the absence of a structure of OTUB1 bound to Lys48 diubiquitin and E2, we took advantage of the observation that the two ubiquitins bound to the proximal and distal sites of OTUB1 mimic the binding of Lys48 diubiquitin xref , xref to examine the structural effect of E2 binding on the N-terminal ubiquitin binding helix of OTUB1."

sparser
"In the absence of E2, we found that OTUB1 binds K48 diubiquitin with a K d of 84 μM ( xref ), which is within the range of K M values reported here ( xref ) and previously xref , xref ."

sparser
"This structure was therefore used as a model for OTUB1 bound to a true Lys48-linked diubiquitin substrate and UBCH5B."

sparser
"We determined equilibrium dissociation constants for OTUB1 (C91S) binding to K48 diubiquitin in the presence of UBE2D1, UBE2D3, and UBE2N ( xref – xref ; thermodynamic parameters listed in xref )."

sparser
"In particular, it was shown that FAT10 binding to either wild-type OTUB1 or the enzymatically inactive C91S variant of OTUB1 downregulated the poly-ubiquitylation of TRAF3 in cells, and this effect was especially prominent for ubiquitin chains linked via the lysine residue 63 of ubiquitin (K63) [ xref ]."

reach
"This approach allowed us to directly measure K48 diubiquitin binding to the OTUB1 : E2 complex without dilution of the E2."
OTUB1 affects SMAD2
3 1 | 3 3
OTUB1 binds SMAD2.
3 | 1 3
3 | 1 3

sparser
"Interestingly, these investigators demonstrate that OTUB1 specifically interacts with phosphorylated SMAD2."

No evidence text available

reach
"These observations suggest that the interaction between OTUB1 and phospho-SMAD2 is direct."

No evidence text available

No evidence text available

sparser
"These observations suggest that the interaction between OTUB1 and phospho-SMAD2 is direct."

sparser
"To definitively establish whether the interaction of OTUB1 with SMAD2 is tail phosphorylation dependent, we generated a biotin-tagged SMAD2 tail peptide (incorporating residues 428–467 of hSMAD2) phosphorylated at the S*MS* motif (SMAD2 phospho-peptide)."
OTUB1 deubiquitinates SMAD2.
1 | 2
OTUB1 deubiquitinates SMAD2. 3 / 3
1 | 2

"OTUB1 enhances TGFbeta signalling by inhibiting the ubiquitylation and degradation of active SMAD2/3."

reach
"OTUB1 could not directly de-ubiquitinate Smad2 and Smad3, while its effect is dependent on regulating ubiquitin E2 conjugating-enzyme activity."

reach
"Recently, OTUB1, a DUB, was reported to reduce poly-ubiquitination of Smad2 and Smad3 through inhibition of the E2 ubiquitin conjugating enzymes."
OTUB1 affects NFkappaB
| 7 1
OTUB1 activates NFkappaB.
| 5 1
| 5 1

reach
"Otub1 deficiency not only promotes signal induced p100 processing and noncanonical NF-kappaB activation but also causes steady-state p100 degradation, leading to aberrant NF-kappaB activation in the canonical pathway."

reach
"Recently, it was also observed that OTUB-1 promotes NF-kappaB activation in dendritic cells during stimulated inflammatory conditions by lysine48 deubiquitination of UBC13 [XREF_BIBR]."

sparser
"Recent reports showed that TAK1 kinase and OTUB1 controls NF-κB activation using similar Ube2v1-UBC13/TRAF6 signaling axis."

reach
"Furthermore, knockdown of OTUB1 reduces TWEAK induced activation of canonical NF-kappaB and MAPK signalling pathways and modulates TWEAK induced gene expression."

reach
"Mechanistically, OTUB1 promoted NF-kappaB activity in DCs by K48-linked deubiquitination and stabilization of the E2-conjugating enzyme UBC13, resulting in increased K63-linked ubiquitination of IRAK1 (IL-1 receptor-associated kinase 1) and TRAF6 (TNF receptor-associated factor 6)."

reach
"OTUB1 positively regulates proinflammatory NF-kappaB signaling in DCs."
OTUB1 inhibits NFkappaB.
| 2
| 2

reach
"The overexpression of OTUB1 inhibited virus induced activation of IRF3 and NF-kappaB, whereas knockdown of OTUB1 had the opposite effects."

reach
"Overexpression of OTUB1 and OTUB2 inhibited virus induced activation of IRF3 and NF-kappaB, transcription of the IFNB1 gene as well as cellular antiviral response, whereas knockdown of OTUB1 and OTUB2 had opposite effects."
OTUB1 affects BIRC2
3 | 1 2 3
OTUB1 binds BIRC2.
3 | 3
3 | 3

sparser
"Under homeostatic conditions, interaction of OTUB1 and c-IAP1 was weak."

No evidence text available

No evidence text available

No evidence text available

sparser
"However, infection with Lm and stimulation with TNF strongly increased association of OTUB1 with c-IAP1 and deubiquitination of K48-linked polyubiquitin chains from c-IAP1, thereby reducing its degradation."

sparser
"Furthermore, OTUB1 interacted with c-IAP1 (Fig.  xref ) and inhibited K48-linked polyubiquitination of c-IAP1 (Fig.  xref ) in Lm-infected cells."
OTUB1 activates BIRC2.
| 1 2
OTUB1 activates BIRC2. 3 / 4
| 1 2

reach
"Since OTUB1 also modulates the stability of cIAP1, it is a likely candidate that would explain the observed phenotype."

eidos
"Further , downregulation of ubiquitin thioesterase OTU domain ubiquitin aldehyde binding 1 ( OTUB1 ) enhances the degradation of cIAP1 and inhibits the TNF-related weak inducer of apoptosis ( TWEAK ) - induced MAPK and NF-kappaB pathway [ 33 ] ."

reach
"OTUB1 modulates c-IAP1 stability to regulate signalling pathways."
TGFBR1 affects OTUB1
1 2 | 6
TGFBR1 phosphorylates OTUB1.
1 | 5
TGFBR1 phosphorylates OTUB1. 4 / 4
| 4

sparser
"SB505124, a selective inhibitor of TGFβ-acitvated ALKs, inhibited the phosphorylation of OTUB1 by ALK5 in a dose-dependent manner ( xref )."

sparser
"ALK2 through ALK6 all phosphorylated OTUB1 in vitro; however the TGFβ-activated ALK4 and ALK5 phosphorylated OTUB1 more robustly than the BMP-activated ALK2, ALK3 and ALK6 ( xref )."

sparser
"In contrast, OTUB1[S18A] was poorly phosphorylated by ALK5, whereas OTUB1[S16A/S18A] was not phosphorylated ( xref ), suggesting that Ser 18 is the main ALK5 phosphorylation site on OTUB1."

sparser
"Both OTUB1 and OTUB1[S16A] were robustly phosphorylated by ALK5 ( xref ), suggesting that Ser 16 was not a major ALK5 phosphorylation site."
TGFBR1 phosphorylates OTUB1 on S18. 2 / 2
1 | 1

sparser
"The type I TGFβ receptor ALK5 phosphorylates OTUB1 at Ser 18 in vitro."

No evidence text available
TGFBR1 binds OTUB1.
2 | 1
2 | 1

No evidence text available

sparser
"Furthermore, upon co-expression in HEK293 cells, OTUB1 interacted with ALK5 ( xref )."

No evidence text available
SMAD3 affects OTUB1
3 | 3 3
3 | 3 1

reach
"The interaction of HA-OTUB1 and mutants with FLAG-SMAD3 is not influenced in the absence or presence of transfected HA-ubiquitin (XREF_SUPPLEMENTARY)."

reach
"This potentially explains the interaction between HA-OTUB1 and FLAG-SMAD3 under overexpression conditions even in the absence of TGFbeta (XREF_FIG and XREF_SUPPLEMENTARY)."

sparser
"To verify the ligand inducible interaction between OTUB1 and SMAD3 at the endogenous level, OTUB1 was immunoprecipitated from human keratinocyte HaCaT cell extracts."

reach
"To verify the ligand inducible interaction between OTUB1 and SMAD3 at the endogenous level, OTUB1 was immunoprecipitated from human keratinocyte HaCaT cell extracts."

No evidence text available

No evidence text available

No evidence text available

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
PKP3 affects OTUB1
| 3 6
PKP3 activates OTUB1.
| 3 3
PKP3 activates OTUB1. 6 / 6
| 3 3

reach
"Moreover, PKP3 markedly prevented OTUB1 mRNA degradation (Fig. 7B)."

eidos
"PKP3 upregulates OTUB1 expression by increasing OTUB1 mRNA stability To test whether PKP3-mediated OTUB1 upregulation is posttranscriptional or transcriptional , we constructed and transfected a luciferase reporter plasmid containing a promoter fragment of OTUB1 into NSCLC cells stably overexpressing PKP3 ."

eidos
"PKP3 promotes OTUB1 expression by enhancing its mRNA stability ."

reach
"To test whether PKP3-mediated OTUB1 upregulation is posttranscriptional or transcriptional, we constructed and transfected a luciferase reporter plasmid containing a promoter fragment of OTUB1 into NSCLC cells stably overexpressing PKP3."

eidos
"Taken together , these findings indicate that PKP3 upregulates OTUB1 expression at the posttranscriptional level rather than at the transcriptional level , possibly by increasing the stability of OTUB1 mRNA ."

reach
"PKP3-mediated OTUB1 upregulation in turn alleviates PD-L1 ubiquitination and subsequent proteasomal degradation."
PKP3 increases the amount of OTUB1.
| 3
PKP3 increases the amount of OTUB1. 3 / 3
| 3

reach
"Taken together, these findings indicate that PKP3 upregulates OTUB1 expression at the posttranscriptional level rather than at the transcriptional level, possibly by increasing the stability of OTUB1 mRNA."

reach
"PKP3 upregulates OTUB1 expression by increasing OTUB1 mRNA stability."

reach
"In line with this, we showed that PKP3 did not influence OTUB1 transcription but altered the rate of OTUB1 mRNA turnover, as demonstrated by actinomycin treatment (Fig. 7A-B)."
OTUB1 affects RHOA
1 | 1 5 2
OTUB1 increases the amount of RHOA.
| 3
OTUB1 increases the amount of RHOA. 3 / 3
| 3

reach
"Indeed, levels of oestrogen receptor α, TRAF3/6 and the small GTPase RhoA were suggested to be modulated by OTUB1 through direct deubiquitylation or indirect effects [39À41]."
| PMC

reach
"OTUB1, YpkA and the small GTPase ras homologue gene family member A (RhoA) were found to be part of the same protein complex, suggesting that RhoA levels are modulated by OTUB1."

reach
"Post-translational modification of the deubiquitinating enzyme otubain 1 modulates active RhoA levels and susceptibility to Yersinia invasion."
OTUB1 binds RHOA.
1 | 1 1
1 | 1 1

reach
"Our own attempts to investigate an interaction between RhoA and OTUB1 in LNCaP-FGC cells by multiple means have failed to demonstrate a direct association."

sparser
"Our own attempts to investigate an interaction between RhoA and OTUB1 in LNCaP-FGC cells by multiple means have failed to demonstrate a direct association."

No evidence text available
OTUB1 activates RHOA.
| 1 1 1
OTUB1 activates RHOA. 3 / 3
| 1 1 1

sparser
"OTUB1 activates RhoA to promote prostate cancer cell invasion and promote tumorigenesis in prostate cancer [ xref ]."

reach
"In summary, we demonstrate that OTUB1 mediated activation of RhoA promotes cell invasion of prostate cancer cells."

eidos
"OTUB1 activates RhoA to promote prostate cancer cell invasion and promote tumorigenesis in prostate cancer [ 152 ] ."
OTUB1 affects MDM4
| 9
OTUB1 increases the amount of MDM4.
| 6
OTUB1 increases the amount of MDM4. 5 / 5
| 5

reach
"Overexpression of Otub1 markedly stabilized MDMX and induced its levels, whereas knockdown of Otub1 reduced the levels of MDMX."

reach
"Consistently, knockdown of endogenous Otub1 by two different siRNAs significantly reduced the levels of MDMX in cells."

reach
"These results suggest that Otub1 increases the cytoplasmic levels of both MDMX and p53."

reach
"Consequently, overexpression of Otub1 markedly stabilized MDMX and increased its levels, whereas knockdown of Otub1 reduced the levels of MDMX."

reach
"Doxycycline induced expression of Otub1 in T-Rex-U2OS-Flag-Otub1 cells also drastically induced the levels of MDMX, as well as p53 and its target MDM2 in a time dependent manner."
Modified OTUB1 increases the amount of MDM4. 1 / 1
| 1

reach
"As shown in Figure XREF_FIG, cell fractionation assays revealed that Otub1 expression not only significantly induced the nuclear levels of p53 and MDMX, but also induced the levels of cytoplasmic MDMX and p53 (lane 4, Figure XREF_FIG)."
OTUB1 activates MDM4.
| 3
OTUB1 activates MDM4. 3 / 3
| 3

reach
"Interestingly, MDMX induced by Otub1 can localize to mitochondria in addition to the cytosol, enhance p53 phosphorylation at S46 (p53S46P) and promote mitochondria mediated apoptotic pathway."

reach
"Also, induced overexpression of Otub1 drastically prolonged the half-life of MDMX as determined by half-life assays."

reach
"Together, these results suggest that Otub1 also induces mitochondrial mediated apoptosis by stabilizing MDMX and relocalizing it to mitochondria to induce mitochondria mediated apoptosis."
UBE2E1 affects OTUB1
1 | 4 3
UBE2E1 binds OTUB1.
1 | 2 3
1 | 2 3

No evidence text available

sparser
"We verified that there was no interaction of Ubc9 with components of the ubiquitin pathway, such as the DUB (deubiquitinating enzyme) OTUB1 ( xref ), and a UBE2E1 and OTUB1 interaction, used as a positive control, was detected, as expected."

reach
"Because UBE2E1 is known to bind OTUB1 (17), this raises the possibility that OTUB1 may stabilize UBE2E1 directly by forming an OTUB1UBE2E1 complex."

reach
"We verified that there was no interaction of Ubc9 with components of the ubiquitin pathway, such as the DUB (deubiquitinating enzyme) OTUB1 (XREF_FIG), and a UBE2E1 and OTUB1 interaction, used as a positive control, was detected, as expected."

sparser
"Because UBE2E1 is known to bind OTUB1 ( xref ), this raises the possibility that OTUB1 may stabilize UBE2E1 directly by forming an OTUB1UBE2E1 complex."

sparser
"Because all members of the UBE2E family can autoubiquitinate themselves in vitro ( xref , xref ), the mechanism of stabilization we observed for OTUB1-UBE2E1 likely extends to UBE2E2 and UBE2E3."
UBE2E1 activates OTUB1.
| 2
UBE2E1 activates OTUB1. 2 / 2
| 2

reach
"A comparison of the effect of several different E2 enzymes on OTUB1 DUB activity showed that the UBE2D enzymes and UBE2E1 robustly stimulate OTUB1, although UBE2N only weakly enhanced cleavage of K48 diubiquitin under the conditions tested 37."

reach
"UBE2E1 protein levels could also be restored in OTUB1 CRISPR knockout cell lines by expressing either FLAG-OTUB1 or untagged OTUB1 (Fig. 2D)."
OTUB1 affects ubiquitylation
| 7
OTUB1 inhibits ubiquitylation. 7 / 8
| 7

sparser
"These results imply that OTUB1 inhibits the ubiquitylation of SMAD2/3 rather than directly deubiquitylating them."

sparser
"For example, OTUB1 regulates T cell anergy via GRAIL [ xref ], and in TGFβ induction, OTUB1 inhibits the ubiquitylation of phospho-SMAD2/3 [ xref ]."

sparser
"This led us to hypothesize that OTUB1 might inhibit the ubiquitylation of SMAD2/3."

sparser
"This and other studies have reported that OTUB1 inhibits ubiquitylation by binding to and inhibiting E2 enzymes xref xref xref xref xref ."

sparser
"Recently, several studies have described a non-canonical mode of OTUB1 action in which OTUB1 inhibits the ubiquitylation of target proteins by binding to and inhibiting the E2 ubiquitin-conjugating enzyme UBE2N (also known as UBC13) independent of its catalytic activity xref xref xref xref ."

sparser
"Finally, the DUB OTUB1 inhibits RNF168-mediated ubiquitylation in a non-catalytic fashion by binding to UBC13 and inhibiting the formation of Lys63-linked poly-ubiquitin chains []."

sparser
"OTUB1 inhibits the ubiquitylation of phospho-SMAD2/3 by binding to and inhibiting the E2 ubiquitin-conjugating enzymes independent of its catalytic activity."
OTUB1 affects FlaG
| 8
| 6

sparser
"As shown in xref F , expression of a catalytic mutant, FLAG-OTUB1 C91S , restores levels of UBE2E1, whereas expression of OTUB1 T134R , fails to restore WT levels of UBE2E1 ( xref F )."

sparser
"UBE2E1 protein levels could also be restored in OTUB1 CRISPR knockout cell lines by expressing either FLAG-OTUB1 or untagged OTUB1 ( xref D )."

sparser
"To confirm that OTUB1 directly regulates the stability of UBE2E1, we generated stable cell lines expressing siRNA-resistant FLAG-OTUB1 and knocked down endogenous OTUB1 by siRNA."

sparser
"To further test whether OTUB1 stabilizes UBE2E1, we overexpressed FLAG-OTUB1 in U2OS cells and probed for UBE2E1."

sparser
"The expression of siRNA-resistant FLAG-OTUB1 restores UBE2E1 protein levels when OTUB1 is knocked down ( xref C )."

sparser
"However, expression of FLAG-OTUB1 stabilized UBE2E1 in OTUB1-depleted cells."

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
OTUB1 affects DEPTOR
| 5 3
OTUB1 binds DEPTOR.
| 3 3
| 3 3

reach
"The interaction between OTUB1 and DEPTOR was enhanced when the cells were treated with amino acids."

reach
"We found that OTUB1 directly interacted with DEPTOR via its N-terminal domain, deubiquitinated DEPTOR, and thereby stabilized DEPTOR in a Cys-91-independent but Asp-88-dependent manner, suggesting that OTUB1 targets DEPTOR for deubiquitination via a deubiquitinase activity independent non canonical mechanism."

sparser
"OTUB1 specifically interacts with DEPTOR via its N-terminal domain, removes the Ub chain on DEPTOR and stabilizes DEPTOR via DUB activity in an Asp88-dependent but not Cys91-dependent manner (Fig. xref )."

reach
"OTUB1 specifically interacts with DEPTOR via its N-terminal domain, removes the Ub chain on DEPTOR and stabilizes DEPTOR via DUB activity in an Asp88 dependent but not Cys91 dependent manner."

sparser
"We found that OTUB1 directly interacted with DEPTOR via its N-terminal domain, deubiquitinated DEPTOR, and thereby stabilized DEPTOR in a Cys-91-independent but Asp-88-dependent manner, suggesting that OTUB1 targets DEPTOR for deubiquitination via a deubiquitinase activity-independent non-canonical mechanism."

sparser
"The interaction between OTUB1 and DEPTOR was enhanced when the cells were treated with amino acids."
OTUB1 ubiquitinates DEPTOR.
| 2
OTUB1 ubiquitinates DEPTOR. 2 / 2
| 2

reach
"Zhao et al. highlighted how OTUB1 inhibited mTORC1 activity by deubiquitinating and stabilizing the inhibitor DEPTOR in response to amino acid deprivation in 293T cells."

reach
"OTUB1 protein suppresses mTOR complex 1 (mTORC1) activity by deubiquitinating the mTORC1 inhibitor DEPTOR."
HSF1 affects OTUB1
| 3 5
| 3 5

reach
"To determine the regions for interaction between OTUB1 and HSF1, we constructed two truncated fragments of OTUB1 (1-47aa and 48-271aa) (Figure 1G)."

sparser
"Moreover, the OTUB1-HSF1 interaction was demonstrated in the proximity ligation assay (PLA) ( xref A and S1B)."

sparser
"Similarly, there was an interaction between endogenous OTUB1 and HSF1 in the endometrial ectopic epithelial (11Z) cell line ( xref C and 1D)."

reach
"Similarly, there was an interaction between endogenous OTUB1 and HSF1 in the endometrial ectopic epithelial (11Z) cell line (Figures 1C and 1D)."

sparser
"To determine the regions for interaction between OTUB1 and HSF1, we constructed two truncated fragments of OTUB1 (1-47aa and 48-271aa) ( xref G)."

reach
"However, the upstream mechanisms regulating this process remain unclear.In this study, we identified the interaction between OTUB1 and HSF1."

sparser
"In this study, we identified the interaction between OTUB1 and HSF1."

sparser
"Here, we demonstrate that OTUB1 interacts with HSF1 and promotes HSF1 protein stability through deubiquitination."
FlaG affects OTUB1
| 8
| 6

sparser
"As shown in xref F , expression of a catalytic mutant, FLAG-OTUB1 C91S , restores levels of UBE2E1, whereas expression of OTUB1 T134R , fails to restore WT levels of UBE2E1 ( xref F )."

sparser
"UBE2E1 protein levels could also be restored in OTUB1 CRISPR knockout cell lines by expressing either FLAG-OTUB1 or untagged OTUB1 ( xref D )."

sparser
"To confirm that OTUB1 directly regulates the stability of UBE2E1, we generated stable cell lines expressing siRNA-resistant FLAG-OTUB1 and knocked down endogenous OTUB1 by siRNA."

sparser
"To further test whether OTUB1 stabilizes UBE2E1, we overexpressed FLAG-OTUB1 in U2OS cells and probed for UBE2E1."

sparser
"The expression of siRNA-resistant FLAG-OTUB1 restores UBE2E1 protein levels when OTUB1 is knocked down ( xref C )."

sparser
"However, expression of FLAG-OTUB1 stabilized UBE2E1 in OTUB1-depleted cells."

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
Vasotocin affects OTUB1
| 2 5
Vasotocin inhibits OTUB1.
| 2 3
| 2 3

eidos
"All cell lysates were subjected to WB assays as indicated AVT interferes with the interaction between Otub1 and c-Maf to increase c-Maf polyubiquitination AVT was identified from the Otub1 / c-Maf system , while Otub1 interacts with c-Maf and prevents its polyubiquitination as its deubiquitinase , therefore , we wondered whether AVT can inhibit Otub1 activity toward c-Maf ubiquitination ."

reach
"It is also in agreement with our hypothesis that AVT inhibits the Otub1 and c-Maf axis therefore leading to MM cell apoptosis and myeloma regression."

eidos
"As shown in Fig. 5b , Otub1 markedly reduced c-Maf polyubiquitination level but it was reversed by AVT , suggesting AVT inhibited Otub1 activity thus increasing the polyubiquitination level of c-Maf ."

reach
"AVT was identified from the Otub1 and c-Maf system, while Otub1 interacts with c-Maf and prevents its polyubiquitination as its deubiquitinase, therefore, we wondered whether AVT can inhibit Otub1 activity toward c-Maf ubiquitination."

reach
"The natural product AVT inhibits the Otub1 and c-Maf axis and displays potent anti-myeloma activity."
Vasotocin activates OTUB1.
| 2
| 2

reach
"XREF_FIG d, AVT elicited potent activity to downregulate all these three Dubs in RPMI-8226 and LP1 but not in KMS11, suggesting that AVT might also target other Dubs in addition to Otub1, however, whether these Dubs are associated with c-Maf should be further studied."

reach
"To this end, we first evaluated c-Maf ubiquitination in HEK293T cells that expressed Otub1, c-Maf and Ub, and further treated with AVT."
YBX1 affects OTUB1
| 2 5
| 2 5

sparser
"In addition to HACE1, YB-1 also interacts with the deubiquitinase otubain-1 (OTUB1) [ xref ]."

reach
"In diabetic mice, aPC ameliorated YB-1 degradation via reducing its K48 ubiquitination through deubiquitinating enzyme otubain-1 (OTUB1) and improving the interaction between YB-1 and OTUB1."

reach
"We demonstrate that ERK inhibition with U0126 also suppressed the phosphorylation of the downstream RSK and YB-1 (S102), which stabilized the interaction between YB-1 and OTUB1 and thereby preserved YB-1 protein expression in diabetic hearts."

sparser
"Co-immunoprecipitation experiments showed that YB-1 interacts with the deubiquitinase OTUB1, but hyperglycemia-induced phosphorylation of YB-1 at S102 diminished this homeostatic interaction, resulting in ubiquitination and degradation of YB-1."

sparser
"aPC preserved the interaction of YB-1 with the deubiquitinating enzyme otubain-1 and maintained expression of otubain-1, which was required to reduce K48-linked YB-1 ubiquitination and to stabilize the 50 kD form of YB-1 after renal IRI and tubular HR injury."

sparser
"In diabetic mice, aPC ameliorated YB-1 degradation via reducing its K48 ubiquitination through deubiquitinating enzyme otubain-1 (OTUB1) and improving the interaction between YB-1 and OTUB1."

sparser
"We demonstrate that ERK inhibition with U0126 also suppressed the phosphorylation of the downstream RSK and YB-1 (S102), which stabilized the interaction between YB-1 and OTUB1 and thereby preserved YB-1 protein expression in diabetic hearts."
VCP affects OTUB1
| 2 4
| 2 4

sparser
"While the binding is considerably weaker than the other OTU1p97 interaction with a K D of 18 µM [ xref ], the overall orientations of the two binding partners are comparable to the other UBX–N-domain interactions."

sparser
"The K D of the OTU1p97 interaction was shown by ITC to be 700 nM, indicating that UBX–p97 and UBXL–p97 interactions are similar in strength [ xref ]."

reach
"Analytical size exclusion chromatography and isothermal titration calorimetry demonstrates that OTU1 can bind VCP in both the presence and absence of a heterodimer formed by ubiquitin fusion degradation protein 1 and nuclear localization protein 4."

sparser
"Here, we report the structural basis for interaction between VCP and OTU1."

reach
"Here, we report the structural basis for interaction between VCP and OTU1."

sparser
"Negative staining EM shows that one molecule of OTU1 binds to one VCP hexamer, and isothermal titration calorimetry suggests that the two proteins bind with a KD of 0.71 μM. Analytical size exclusion chromatography and isothermal titration calorimetry demonstrates that OTU1 can bind VCP in both the presence and absence of a heterodimer formed by ubiquitin fusion degradation protein 1 and nuclear localization protein 4."
SMAD2 affects OTUB1
3 | 1 3
3 | 1 3

sparser
"Interestingly, these investigators demonstrate that OTUB1 specifically interacts with phosphorylated SMAD2."

No evidence text available

reach
"These observations suggest that the interaction between OTUB1 and phospho-SMAD2 is direct."

No evidence text available

No evidence text available

sparser
"These observations suggest that the interaction between OTUB1 and phospho-SMAD2 is direct."

sparser
"To definitively establish whether the interaction of OTUB1 with SMAD2 is tail phosphorylation dependent, we generated a biotin-tagged SMAD2 tail peptide (incorporating residues 428–467 of hSMAD2) phosphorylated at the S*MS* motif (SMAD2 phospho-peptide)."
OTUB2 affects OTUB1
| 7
| 5

sparser
"Next, Kaplan-Meier's survival analysis was performed to examine the expression of five deubiquitinating enzymes in 117 NSCLC patients (GEO Submission: GSE13213) and revealed that the higher expression of OTUB1 and OTUB2 was significantly associated with poor patient prognosis (Figure xref B-EandFigure xref E)."

sparser
"OTU1 and OTU2 ( R. radiotolerans ) associated to the meteorites ( p = 0.034), as did OTU5 ( Blastococcus sp.) p = 0.034, OTU6 ( G. pulveris ) p = 0.034, OTU12 (Chloroflexi) p = 0.028, OTU15 ( B. jejuensis ) p = 0.034, OTU19 (Frankiales) p = 0.034, OTU21 ( D. navajonensis ) p = 0.034, and OTU23 ( Rubrobacter sp.) p = 0.032."

sparser
"Binding of Known Covalent SARS-CoV PLpro Inhibitors to OTUB2/OTUB1/SARS-CoV-2 PLpro."

sparser
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus-triggered IRF3 and NF-κB activation [ xref ]."

sparser
"On the other hand, OTU1-OTU3 comparisons showed four total upregulated and 88 downregulated genes in OTU1-dominated communities, whereas OTU1-OTU2 comparisons showed 751 total upregulated and 403 downregulated genes in OTU1-dominated communities ( xref )."
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
| 3 4

eidos
"And OTUB1 promoted glycolysis in endometriosis cells ."

reach
"In conclusion, OTUB1 promotes glycolysis in endometriosis cells."

eidos
"The results showed that OTUB1 promoted glycolysis via HSF1-mediated PFKFB3 expression ( Figures S4A and S4B ) ."

reach
"Further, we found that OTUB1 mediated glycolysis by regulating TGFBI in infantile hemangioma."

reach
"In addition, OTUB1 enhances glycolysis and epithelial-mesenchymal transition of endometriosis cells, leading to promote proliferation, migration, and invasion of endometriosis cells."

eidos
"Further , we found that OTUB1 mediated glycolysis by regulating TGFBI in infantile hemangioma ."

reach
"And OTUB1 promoted glycolysis in endometriosis cells."

reach
"Together, OTUB1 promotes epithelial-mesenchymal transition in endometriosis cells."

reach
"The results confirmed that OTUB1 promoted EMT in endometriosis, which is consistent with our previous findings (Figures 8G and 8H)."

reach
"OTUB1 promotes CRC metastasis by facilitating EMT and acts as a potential distant metastasis marker and prognostic factor in CRC."

eidos
"The results confirmed that OTUB1 promoted EMT in endometriosis , which is consistent with our previous findings ( Figures 8G and 8H ) ."

reach
"In addition, OTUB1 enhances glycolysis and epithelial-mesenchymal transition of endometriosis cells, leading to promote proliferation, migration, and invasion of endometriosis cells."

reach
"OTUB1 also promoted the metastasis of CRC cell lines in vitro and in vivo by regulating EMT."

reach
"Our data showed that overexpression of OTUB1 altered the expression levels of EMT-related factors and promotes EMT in endometriosis cells."
OTUB1 affects YBX1
| 2 5
| 2 5

sparser
"In addition to HACE1, YB-1 also interacts with the deubiquitinase otubain-1 (OTUB1) [ xref ]."

reach
"In diabetic mice, aPC ameliorated YB-1 degradation via reducing its K48 ubiquitination through deubiquitinating enzyme otubain-1 (OTUB1) and improving the interaction between YB-1 and OTUB1."

reach
"We demonstrate that ERK inhibition with U0126 also suppressed the phosphorylation of the downstream RSK and YB-1 (S102), which stabilized the interaction between YB-1 and OTUB1 and thereby preserved YB-1 protein expression in diabetic hearts."

sparser
"Co-immunoprecipitation experiments showed that YB-1 interacts with the deubiquitinase OTUB1, but hyperglycemia-induced phosphorylation of YB-1 at S102 diminished this homeostatic interaction, resulting in ubiquitination and degradation of YB-1."

sparser
"aPC preserved the interaction of YB-1 with the deubiquitinating enzyme otubain-1 and maintained expression of otubain-1, which was required to reduce K48-linked YB-1 ubiquitination and to stabilize the 50 kD form of YB-1 after renal IRI and tubular HR injury."

sparser
"In diabetic mice, aPC ameliorated YB-1 degradation via reducing its K48 ubiquitination through deubiquitinating enzyme otubain-1 (OTUB1) and improving the interaction between YB-1 and OTUB1."

sparser
"We demonstrate that ERK inhibition with U0126 also suppressed the phosphorylation of the downstream RSK and YB-1 (S102), which stabilized the interaction between YB-1 and OTUB1 and thereby preserved YB-1 protein expression in diabetic hearts."
OTUB1 affects VCP
| 2 4
| 2 4

sparser
"While the binding is considerably weaker than the other OTU1p97 interaction with a K D of 18 µM [ xref ], the overall orientations of the two binding partners are comparable to the other UBX–N-domain interactions."

sparser
"The K D of the OTU1p97 interaction was shown by ITC to be 700 nM, indicating that UBX–p97 and UBXL–p97 interactions are similar in strength [ xref ]."

reach
"Analytical size exclusion chromatography and isothermal titration calorimetry demonstrates that OTU1 can bind VCP in both the presence and absence of a heterodimer formed by ubiquitin fusion degradation protein 1 and nuclear localization protein 4."

sparser
"Here, we report the structural basis for interaction between VCP and OTU1."

reach
"Here, we report the structural basis for interaction between VCP and OTU1."

sparser
"Negative staining EM shows that one molecule of OTU1 binds to one VCP hexamer, and isothermal titration calorimetry suggests that the two proteins bind with a KD of 0.71 μM. Analytical size exclusion chromatography and isothermal titration calorimetry demonstrates that OTU1 can bind VCP in both the presence and absence of a heterodimer formed by ubiquitin fusion degradation protein 1 and nuclear localization protein 4."
OTUB1 affects OTUB2
| 7
| 5

sparser
"Next, Kaplan-Meier's survival analysis was performed to examine the expression of five deubiquitinating enzymes in 117 NSCLC patients (GEO Submission: GSE13213) and revealed that the higher expression of OTUB1 and OTUB2 was significantly associated with poor patient prognosis (Figure xref B-EandFigure xref E)."

sparser
"OTU1 and OTU2 ( R. radiotolerans ) associated to the meteorites ( p = 0.034), as did OTU5 ( Blastococcus sp.) p = 0.034, OTU6 ( G. pulveris ) p = 0.034, OTU12 (Chloroflexi) p = 0.028, OTU15 ( B. jejuensis ) p = 0.034, OTU19 (Frankiales) p = 0.034, OTU21 ( D. navajonensis ) p = 0.034, and OTU23 ( Rubrobacter sp.) p = 0.032."

sparser
"Binding of Known Covalent SARS-CoV PLpro Inhibitors to OTUB2/OTUB1/SARS-CoV-2 PLpro."

sparser
"OTUB1 and OTUB2 interact with and deubiquitinate TRAF3 and TRAF6, which are required for virus-triggered IRF3 and NF-κB activation [ xref ]."

sparser
"On the other hand, OTU1-OTU3 comparisons showed four total upregulated and 88 downregulated genes in OTU1-dominated communities, whereas OTU1-OTU2 comparisons showed 751 total upregulated and 403 downregulated genes in OTU1-dominated communities ( xref )."
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
OTUB1 affects ESR1
3 1 | 2
OTUB1 binds ESR1.
3 |
3 |

No evidence text available

No evidence text available

No evidence text available
OTUB1 deubiquitinates ESR1.
1 | 1
OTUB1 deubiquitinates ESR1. 2 / 2
1 | 1

No evidence text available

reach
"OTUB1 deubiquitinates ERalpha in vitro and in vivo and stabilizes ERalpha in the nucleus [XREF_BIBR]."
OTUB1 activates ESR1.
| 1
OTUB1 activates ESR1. 1 / 2
| 1

reach
"Similarly, Estrogen Receptor (ER) can also be regulated by deubiquitination, OTUB1 has been identified to target ER-alpha affecting ER target gene transcription and stabilising its protein levels on chromatin [XREF_BIBR]."
OTUB1 affects E2F1
| 4 3
OTUB1 binds E2F1.
| 3 3
| 3 3

sparser
"Importantly, the results of co-immunoprecipitation (Co-IP) assays showed that silencing TMPO-AS1 not only increased E2F1 ubiquitination but also mitigated the interaction between OTUB1 and E2F1 ( xref ); importantly, this phenotype was rescued after the TMPO-AS1 overexpression."

reach
"The interactions between E2F1, OTUB1, and TMPO-AS1 were predicted via Agostini et al. introduced catRAPID (http://s.tartaglialab.com/page/catrapid_group), a server to identify the interaction of RNA and protein and Tuvshinjargal et al. developed a web server named PRIdictor (http://bclab.inha.ac.kr/pridictor) to reveal mutual binding in protein and RNA."

sparser
"Additionally, TMPO-AS1 facilitates the interaction of E2F1 with OTU domain-containing ubiquitin aldehyde binding 1 (OTUB1), leading to E2F1 deubiquitination and stabilization; therefore, TMPO-AS1 promotes BC malignant phenotypes."

reach
"Importantly, the results of co-immunoprecipitation (Co-IP) assays showed that silencing TMPO-AS1 not only increased E2F1 ubiquitination but also mitigated the interaction between OTUB1 and E2F1 (XREF_FIG); importantly, this phenotype was rescued after the TMPO-AS1 overexpression."

sparser
"We demonstrate that E2F1 activates the transcription of TMPO-AS1, which, in turn, facilitates the interaction of E2F1 with OTU domain-containing ubiquitin aldehyde binding 1 (OTUB1), a deubiquitinase; consequently, the E2F1 protein levels are increased via stabilization, promoting BC malignant phenotypes."

reach
"Additionally, the protein interactions between E2F1 and OTUB1 were predicted using HDOCK (http://hdock.phys.hust.edu.cn)."
OTUB1 deubiquitinates E2F1.
| 1
OTUB1 leads to the deubiquitination of E2F1. 1 / 1
| 1

reach
"Furthermore, the OTUB1 knockdown significantly reversed the decreased ubiquitination of E2F1 induced by the overexpression of TMPO-AS1 in RT4 and T24 cells (XREF_FIG)."
OTUB1 affects DOA1
| 2 5
| 2 2

sparser
"In yeast, DUB-E3 complexes appear to play a similar role, as evidenced by the interaction of Ufd3 (a ubiquitin ligase) and Otu1 (a DUB) on Cdc48 complexes that regulate proteasomal degradation of substrates [ xref ]."

reach
"The DUB Otu1 can bind simultaneously with Ufd3 to Cdc48."

sparser
"Rumpf and Jentsch [ xref ] outline a model by which the ubiquitylation and proteasome-targeting activity of VCP, when bound to the E4 ligase Ufd2, can be counteracted by either simultaneous binding of either the deubiquitylase Otu1 or the competing cofactor Ufd3."

reach
"One view is that the binding of Otu1 and Ufd3 to the Cdc48 complex primes this enzyme to inhibit ubiquitination, and thus degradation, of ERAD substrates."
OTUB1 binds DOA1 and Cdc48. 3 / 3
| 3

sparser
"Notably, Cdc48 can bind Otu1 and Ufd3 simultaneously, making a cooperation of both inhibitory mechanisms possible."

sparser
"The DUB Otu1 can bind simultaneously with Ufd3 to Cdc48."

sparser
"One view is that the binding of Otu1 and Ufd3 to the Cdc48 complex primes this enzyme to inhibit ubiquitination, and thus degradation, of ERAD substrates."
RAS affects OTUB1
| 1 4
| 1 3

sparser
"Using a set of reciprocal immunoprecipitations, we confirmed that OTUB1 interacted with RAS proteins (Fig  xref C–F)."

sparser
"These results strongly indicate that OTUB1 interacts with RAS proteins in a GTP‐independent manner, suggesting that OTUB1 is an upstream regulator of RAS GTPases."

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."

reach
"Consistently with this observation, both inactive GDP bound and active GTP-gamma-S-bound forms of NRAS interacted with OTUB1 (Fig XREF_FIG E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
RAS binds OTUB1 and NRAS. 1 / 1
| 1

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
OTUB1 affects USP8
1 | 2 3
OTUB1 inhibits USP8.
| 2 1
OTUB1 inhibits USP8. 3 / 3
| 2 1

sparser
"This unexpected function of otubain-1 might be mediated through the inhibition of USP8, a DUB that binds to and deubiquitylates GRAIL; however, it is not known how otubain-1 might inhibit USP8 (Ref. xref )."

reach
"This unexpected function of otubain-1 might be mediated through the inhibition of USP8, a DUB that binds to and deubiquitylates GRAIL; however, it is not known how otubain-1 might inhibit USP8."

reach
"Interestingly, Otub1 expression completely abolished USP8 mediated stabilization of GRAIL when all 3 proteins were co-expressed."
OTUB1 binds USP8.
1 | 2
1 | 2

sparser
"Otub1 forms a trimolecular complex with USP8 and GRAIL, and upregulated Otub1 promotes GRAIL's proteosomal degradation."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available
OTUB1 affects AKT
| 2 4
OTUB1 binds AKT.
| 4
| 4

sparser
"In primary OT-I CD8 T cells, the AKT-Otub1 interaction was barely detectable at steady state but was strongly induced by IL-15 ( xref )."

sparser
"IL-15-stimulated AKT activation is negatively regulated by Otub1, which physically interacts with AKT and prevents its K63 ubiquitination and membrane translocation. xref Interestingly, in IL-15-exposed cells, Otub1 is relocated to the membrane compartment, a mechanism that enables Otub1 to inhibit AKT ubiquitination and activation induced by both IL-15 and TCR signals (Fig. xref )."

sparser
"Interestingly, AKT was physically associated with Otub1 in 15R-KIT cells, which was strongly enhanced upon IL-15 stimulation ( xref )."

sparser
"The Otub1-AKT binding was also readily detected under transfection conditions ( xref )."
OTUB1 inhibits AKT.
| 2
OTUB1 inhibits AKT. 2 / 2
| 2

reach
"In addition, Otub1 deletion in cells enhanced AKT activity, leading to a larger cell size, higher ATP levels and reduced AMPK phosphorylation."

reach
"The PI3K and AKT pathway integrates the TCR and CD28 and IL-15R signals and is negatively regulated by the DUB Otub1."
| 6

reach
"Overexpression of OTUB1, but not the OTUB1 (C91S) mutant, significantly enhanced the cell proliferation as well as the viability of WT MEFs in response to epirubicin (XREF_FIG)."

reach
"Our data show that WT OTUB1, but not the OTUB1 (C91S) catalytic dead mutant, can enhance the stability of FOXM1 in response to epirubicin in MCF-7 cells, suggesting that the deubiquitinase activity is required for the degradation of FOXM1."

reach
"In addition, proliferative and clonogenic assays also show that OTUB1 can enhance the proliferative rate and epirubicin resistance through targeting FOXM1, as OTUB1 has little effect on FOXM1 deficient cells."

reach
"Furthermore, we also found that OTUB1 overexpression enhanced the resistance of MCF-7 cells to epirubicin (XREF_SUPPLEMENTARY)."

reach
"OTUB1 promotes cell proliferation and epirubicin resistance through targeting FOXM1."

reach
"18 In here, we not only show that the potent oncogene FOXM1 is a target of OTUB1 but also present evidence to demonstrate that the oncogenic and genotoxic functions of OTUB1 depend on the expression of a functional FOXM1, suggesting that OTUB1 promotes cell proliferation and epirubicin resistance predominantly through targeting FOXM1."
E2F1 affects OTUB1
| 3 3
| 3 3

sparser
"Importantly, the results of co-immunoprecipitation (Co-IP) assays showed that silencing TMPO-AS1 not only increased E2F1 ubiquitination but also mitigated the interaction between OTUB1 and E2F1 ( xref ); importantly, this phenotype was rescued after the TMPO-AS1 overexpression."

reach
"The interactions between E2F1, OTUB1, and TMPO-AS1 were predicted via Agostini et al. introduced catRAPID (http://s.tartaglialab.com/page/catrapid_group), a server to identify the interaction of RNA and protein and Tuvshinjargal et al. developed a web server named PRIdictor (http://bclab.inha.ac.kr/pridictor) to reveal mutual binding in protein and RNA."

sparser
"Additionally, TMPO-AS1 facilitates the interaction of E2F1 with OTU domain-containing ubiquitin aldehyde binding 1 (OTUB1), leading to E2F1 deubiquitination and stabilization; therefore, TMPO-AS1 promotes BC malignant phenotypes."

reach
"Importantly, the results of co-immunoprecipitation (Co-IP) assays showed that silencing TMPO-AS1 not only increased E2F1 ubiquitination but also mitigated the interaction between OTUB1 and E2F1 (XREF_FIG); importantly, this phenotype was rescued after the TMPO-AS1 overexpression."

sparser
"We demonstrate that E2F1 activates the transcription of TMPO-AS1, which, in turn, facilitates the interaction of E2F1 with OTU domain-containing ubiquitin aldehyde binding 1 (OTUB1), a deubiquitinase; consequently, the E2F1 protein levels are increased via stabilization, promoting BC malignant phenotypes."

reach
"Additionally, the protein interactions between E2F1 and OTUB1 were predicted using HDOCK (http://hdock.phys.hust.edu.cn)."
DEPTOR affects OTUB1
| 3 3
| 3 3

reach
"The interaction between OTUB1 and DEPTOR was enhanced when the cells were treated with amino acids."

reach
"We found that OTUB1 directly interacted with DEPTOR via its N-terminal domain, deubiquitinated DEPTOR, and thereby stabilized DEPTOR in a Cys-91-independent but Asp-88-dependent manner, suggesting that OTUB1 targets DEPTOR for deubiquitination via a deubiquitinase activity independent non canonical mechanism."

sparser
"OTUB1 specifically interacts with DEPTOR via its N-terminal domain, removes the Ub chain on DEPTOR and stabilizes DEPTOR via DUB activity in an Asp88-dependent but not Cys91-dependent manner (Fig. xref )."

reach
"OTUB1 specifically interacts with DEPTOR via its N-terminal domain, removes the Ub chain on DEPTOR and stabilizes DEPTOR via DUB activity in an Asp88 dependent but not Cys91 dependent manner."

sparser
"We found that OTUB1 directly interacted with DEPTOR via its N-terminal domain, deubiquitinated DEPTOR, and thereby stabilized DEPTOR in a Cys-91-independent but Asp-88-dependent manner, suggesting that OTUB1 targets DEPTOR for deubiquitination via a deubiquitinase activity-independent non-canonical mechanism."

sparser
"The interaction between OTUB1 and DEPTOR was enhanced when the cells were treated with amino acids."
BIRC2 affects OTUB1
3 | 3
3 | 3

sparser
"Under homeostatic conditions, interaction of OTUB1 and c-IAP1 was weak."

No evidence text available

No evidence text available

No evidence text available

sparser
"However, infection with Lm and stimulation with TNF strongly increased association of OTUB1 with c-IAP1 and deubiquitination of K48-linked polyubiquitin chains from c-IAP1, thereby reducing its degradation."

sparser
"Furthermore, OTUB1 interacted with c-IAP1 (Fig.  xref ) and inhibited K48-linked polyubiquitination of c-IAP1 (Fig.  xref ) in Lm-infected cells."
UBE2D3 affects OTUB1
4 | 1
4 | 1

No evidence text available

No evidence text available

sparser
"These E2 enzymes have EC 50 values in the single digit micromolar range and lower the K M of OTUB1 for its substrate to 6.6 – 14 μM. Since the concentration of UBE2D3 alone has been reported to be 1.7 μM in MEF cells xref and the effective concentration of UBE2D3 needed to stimulate the DUB activity of OTUB1 is 1.6 μM ( xref ), it is likely that OTUB1:UBE2D3 form a stimulated DUB complex in cells."

No evidence text available

No evidence text available
OTUD6B affects OTUB1
3 | 2
3 | 2

No evidence text available

sparser
"Studying OTUD6B-OTUB1 Protein-Protein Interaction by Low-Throughput GFP-Trap Assays and High-Throughput AlphaScreen Assays."

No evidence text available

sparser
"We describe the GFP-Trap immunoprecipitation as a cell-based method to analyze the OTUD6B-OTUB1 interaction in the cellular context and the AlphaScreen (amplified luminescent proximity homogeneous assay) assay as a tool to detect direct interactions and to search for PPI inhibitors."

No evidence text available
| 2 3

reach
"OTUB1 prevents lethal hepatocyte necroptosis through stabilization of c-IAP1 during murine liver inflammation."

reach
"Correction : OTUB1 prevents lethal hepatocyte necroptosis through stabilization of c-IAP1 during murine liver inflammation."

trips
"OTUB1 prevents lethal hepatocyte necroptosis through stabilization of c-IAP1 during murine liver inflammation."

trips
"Correction: OTUB1 prevents lethal hepatocyte necroptosis through stabilization of c-IAP1 during murine liver inflammation."

reach
"Combined in vivo and in vitro experiments comprising mice lacking OTUB1 specifically in liver parenchymal cells (OTUB1 LPC-KO) and human OTUB1 deficient HepG2 cells revealed that OTUB1 prevented hepatocyte necroptosis but not apoptosis upon infection with Lm and DGal and TNF challenge."

reach
"Collectively, these results suggest that DC-specific OTUB1 contributes to parasite control in both acute and chronic toxoplasmosis by facilitating early IL-12 production in DCs, which is indispensable for eliciting the protective IFN-γ response."

reach
"Abolishment of NF-κB activity by the inhibitor dramatically reduced IL-12 production by both OTUB1-sufficient and OTUB1-deficient BMDCs and blunted the difference in IL-12 production between the two cell populations (Fig. 2h)."

reach
"Reduced phosphorylation of TAK1, IκBα, and p65 was detected in OTUB1-deficient BMDCs upon stimulation with TgPFN (Fig. 2g), suggesting that OTUB1 is required for the full-fledged activation of NF-κB. To reinforce the assertion that OTUB1 promotes IL-12 production by increasing NF-κB activity, we studied the effect of IKK inhibition on TgPFN-induced cytokine production in OTUB1-sufficient and OTUB1-deficient BMDCs."

reach
"Therefore, we explored the impact of OTUB1 on DC-mediated IL-12 production during T. gondii infection."

reach
"The strong OTUB1-dependent reduction in IL-12 production by CD11b cDC2s at 48 h p.i."
OTUB1 affects UBE2L3
1 | 2 2
OTUB1 binds UBE2L3.
1 | 1 1
1 | 1 1

No evidence text available

reach
"In contrast, UbcH7, which is not inhibited by OTUB1, does not interact with OTUB1 in our NMR experiments (XREF_SUPPLEMENTARY)."

sparser
"In contrast, UbcH7, which is not inhibited by OTUB1, does not interact with OTUB1 in our NMR experiments ( xref )."
OTUB1 inhibits UBE2L3.
| 1 1
OTUB1 inhibits UBE2L3. 2 / 2
| 1 1

reach
"Similar interactions could form between OTUB1 and UBE2D2 (UBCH5b) (XREF_FIG), but clashes due to an insertion and a non conserved lysine would arise with UBE2L3 (UBCH7), consistent with the observation that OTUB1 inhibits UBCH5b but not UBCH7 4."

sparser
"In contrast, UbcH7, which is not inhibited by OTUB1, does not interact with OTUB1 in our NMR experiments ( xref )."
OTUB1 affects UBE2D3
4 | 1
4 | 1

No evidence text available

No evidence text available

sparser
"These E2 enzymes have EC 50 values in the single digit micromolar range and lower the K M of OTUB1 for its substrate to 6.6 – 14 μM. Since the concentration of UBE2D3 alone has been reported to be 1.7 μM in MEF cells xref and the effective concentration of UBE2D3 needed to stimulate the DUB activity of OTUB1 is 1.6 μM ( xref ), it is likely that OTUB1:UBE2D3 form a stimulated DUB complex in cells."

No evidence text available

No evidence text available
OTUB1 affects OTUD6B
3 | 2
3 | 2

No evidence text available

sparser
"Studying OTUD6B-OTUB1 Protein-Protein Interaction by Low-Throughput GFP-Trap Assays and High-Throughput AlphaScreen Assays."

No evidence text available

sparser
"We describe the GFP-Trap immunoprecipitation as a cell-based method to analyze the OTUD6B-OTUB1 interaction in the cellular context and the AlphaScreen (amplified luminescent proximity homogeneous assay) assay as a tool to detect direct interactions and to search for PPI inhibitors."

No evidence text available
OTUB1 affects OTUB1
| 4
OTUB1 increases the amount of OTUB1.
| 3
OTUB1 increases the amount of OTUB1. 3 / 3
| 3

reach
"Consistently, the overexpression of OTUB1‐isoform2 significantly increased the mRNA level of OTUB1‐isoform2 but failed to elevate OTUB1 at either the mRNA (P < .01, Figure 2E) or the protein level (Figure 2F)."

reach
"PKP3 upregulates OTUB1 expression by increasing OTUB1 mRNA stability."

reach
"The overexpression of OTUB1 significantly increased the mRNA level of OTUB1 but failed to elevate the mRNA level of OTUB1‐isoform2 (P < .01, Figure 2D)."
OTUB1 activates OTUB1.
| 1
OTUB1 activates OTUB1. 1 / 2
| 1

reach
"Taken together, these findings indicate that PKP3 upregulates OTUB1 expression at the posttranscriptional level rather than at the transcriptional level, possibly by increasing the stability of OTUB1 mRNA."
OTUB1 affects OTU
| 3 2
| 3 2

reach
"The ovarian tumor domain (OTU) deubiquitinylating cysteine proteases OTU ubiquitin aldehyde binding 1 (OTUB1) and OTUB2 are representative members of the OTU subfamily of deubiquitinylases."

sparser
"Seven OTUs (OTU1OTU7) were identified as members of Caballeronia by a BLAST search."

reach
"Using functional ubiquitination and deubiquitination assays, we show that the ovarian tumor (OTU) family deubiquitinase ubiquitin aldehyde binding 1 (OTUB1) inhibits MSH2 ubiquitination by blocking the E2 ligase ubiquitin transfer activity."

sparser
"The clones in OTU1OTU8, OTU13–OTU14, and OTU9–OTU12 and OTU15–OTU30 belonged to the classes Betaproteobacteria , Gammaproteobacteria , and Alphaproteobacteria , respectively ( xref )."

reach
"Recent MS studies have shown that OTU deubiquitinase ubiquitin aldehyde binding 1 (OTUB1), a deubiquitinating enzyme of the OTU family, is enriched together with alpha-synuclein in LBs from individuals with PD and is also present in amyloid plaques associated with Alzheimer 's disease."
OTUB1 affects MSH2 ubiquitination
| 5
OTUB1 inhibits MSH2 ubiquitination. 5 / 5
| 5

eidos
"These results strongly suggest that OTUB1 blocks MSH2 ubiquitination by inhibiting the E2 ligase activity , rather than by directly deubiquitinating MSH2 ."

eidos
"We therefore conclude that OTUB1 prevents MSH2 ubiquitination by suppressing the E2 ligase activity ."

eidos
"It is possible that OTUB1 prevents MSH2 ubiquitination by inhibiting the E2 activity of HDAC6 or by competing with HDAC6 for the MSH2 residues located in the central domain ."

eidos
"Collectively , these results suggest that MSH2 is a substrate of OTUB1 and that OTUB1 inhibits MSH2 ubiquitination ."

eidos
"Depleting OTUB1 or impairing its noncanonical function that inhibits E2 activity enhances MSH2 ubiquitination ( Fig. 3 ) and subsequent degradation via the proteasome ( Fig. 2 ) ."
OTUB1 affects DDX58
| 3 2
OTUB1 deubiquitinates DDX58.
| 2
OTUB1 leads to the deubiquitination of DDX58. 2 / 2
| 2

reach
"NS1 is the most important IFNs antagonist protein via mechanisms including inhibition of the TRIM25 mediated RIG-I ubiquitination, suppression of protein kinase R (PKR), phosphorylation of IkappaB kinases (IKK) alpha and beta in the NF-kappaB pathway, interruption of the phosphorylation of STAT1, STAT2, and STAT3 [XREF_BIBR, XREF_BIBR], and degradation of OTUB1 [XREF_BIBR]."

reach
"NS1 is the most important IFNs antagonist protein via mechanisms including inhibition of the TRIM25-mediated RIG-I ubiquitination, suppression of protein kinase R (PKR), phosphorylation of IκB kinases (IKK) α and β in the NF-κB pathway, interruption of the phosphorylation of STAT1, STAT2, and STAT3 [39, 115] , and degradation of OTUB1 [138] ."
OTUB1 activates DDX58.
| 1 1
OTUB1 activates DDX58. 2 / 2
| 1 1

reach
"OTUB1 activates RIG-I via a dual mechanism ofK48 polyubiquitin hydrolysis and formation of an E2 and repressive complex with UBCH5c."

sparser
"OTUB1 activates RIG-I via a dual mechanism of K48 polyubiquitin hydrolysis and formation of an E2-repressive complex with UBCH5c."
OTUB1 inhibits DDX58.
| 1
OTUB1 inhibits DDX58. 1 / 1
| 1

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63-linked polyubiquitin chains. [172] Because various components are involved in virusinduced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG-I-, MDA5-, and MAVS-mediated but not TBK1-and IRF3-mediated signaling."
| 2 3
| 2 3

reach
"A growing body of literature demonstrates that the DUB Otubain 1 (OTUB1) regulates many cancer associated signaling pathways including MAPK, ERa, epithelial-mesenchymal transition (EMT), RHOa, mTORC1, FOXM1 and P53 to promote tumor cell survival, proliferation, invasiveness and therapeutic resistance."

reach
"OTUB1 depletion in melanoma cells decreased cell viability and caused simultaneous accumulation of cells in the sub-G1 phase, indicating an increase in the apoptotic-cell population."

eidos
"Knockdown of OTUB1 inhibited cell viability and proliferation , as well as migration and invasion of RCC cells ."

reach
"Otub1 promotes MM cell survival and MM tumor growth."

eidos
"Data from CCK8 ( Fig. 2b ) and colony formation assay ( Fig. 2c ) indicated that knockdown of OTUB1 decreased cell viability and inhibited cell proliferation of RCC cells ."
OTUB1 affects CFTR
| 2 3
| 2 3

sparser
"While the highest intensity signals corresponded to unmodified OTUB1 and the ΔF508-harboring CFTR nucleotide-binding domain used in this experiment, potentially indicating low levels of target engagement under these experimental conditions, we observed significant CFTR-OTUB1 complex formation with NJH-2-057 treatment, but not with DMSO vehicle or EN523 treatment ( xref – xref )."

reach
"While the highest intensity signals corresponded to unmodified OTUB1 and the ΔF508-harboring CFTR nucleotide-binding domain used in this experiment, potentially indicating low levels of target engagement under these experimental conditions, we observed significant CFTR-OTUB1 complex formation with NJH-2-057 treatment, but not with DMSO vehicle or EN523 treatment (Figure 3h–3i)."

reach
"Nonetheless, given that this OTUB1-CFTR complex was only observed with DUBTAC treatment but not with DMSO or EN523 treatment, our data strongly suggests that the DUBTAC enables ternary complex formation."

sparser
"Nonetheless, given that this OTUB1-CFTR complex was only observed with DUBTAC treatment but not with DMSO or EN523 treatment, our data strongly suggests that the DUBTAC enables ternary complex formation."

sparser
"Having identified NJH-2-057 as a DUBTAC that was capable of stabilizing mutant CFTR in cells, we next sought to confirm the formation of a ternary complex between CFTR, NJH-2-057, and OTUB1 in vitro using recombinant protein and native mass spectrometry (MS)-based approaches ( xref – xref )."
OTUB1 affects CD44
| 1 4
| 3

sparser
"By the same method, to avoid the issue that decreased SLC7A11 protein levels are the only factor for the decrease of the OTUB1-SLC7A11 interaction in CD44 knockdown cells (Input: lane 1 vs. lane 2, xref ), we normalized the amounts of SLC7A11 after immunoprecipitation (IP: lane 3 vs. lane 4, xref )."

sparser
"Since CD44 can stabilize SLC7A11 by enhancing the binding between SLC7A11 and OTUB1 ( xref ), it is very likely that CD44, OTUB1 and SLC7A11 form a stable three-protein complex that leads to more effective stabilization of SLC7A11."

sparser
"Thus, OTUB1 and CD44 interacts with the different domains of SLC7A11."
| 1 1

reach
"Interestingly, by co-immunoprecipitation assays, we found that CD44 also interacts with OTUB1 although the binding affinity between OTUB1 and CD44 is not very high (XREF_FIG)."

sparser
"Interestingly, by co-immunoprecipitation assays, we found that CD44 also interacts with OTUB1 although the binding affinity between OTUB1 and CD44 is not very high ( xref )."
OTU affects OTUB1
| 3 2
| 3 2

reach
"The ovarian tumor domain (OTU) deubiquitinylating cysteine proteases OTU ubiquitin aldehyde binding 1 (OTUB1) and OTUB2 are representative members of the OTU subfamily of deubiquitinylases."

sparser
"Seven OTUs (OTU1OTU7) were identified as members of Caballeronia by a BLAST search."

reach
"Using functional ubiquitination and deubiquitination assays, we show that the ovarian tumor (OTU) family deubiquitinase ubiquitin aldehyde binding 1 (OTUB1) inhibits MSH2 ubiquitination by blocking the E2 ligase ubiquitin transfer activity."

sparser
"The clones in OTU1OTU8, OTU13–OTU14, and OTU9–OTU12 and OTU15–OTU30 belonged to the classes Betaproteobacteria , Gammaproteobacteria , and Alphaproteobacteria , respectively ( xref )."

reach
"Recent MS studies have shown that OTU deubiquitinase ubiquitin aldehyde binding 1 (OTUB1), a deubiquitinating enzyme of the OTU family, is enriched together with alpha-synuclein in LBs from individuals with PD and is also present in amyloid plaques associated with Alzheimer 's disease."
MTOR affects OTUB1
1 | 4
MTOR increases the amount of OTUB1. 4 / 4
| 4

reach
"MTOR inhibition prevents Otub1 protein expression and maintains GRAIL, resulting in diminished cell proliferation."

reach
"Inhibition of mTOR activity is sufficient to block Otub1 protein expression and maintain GRAIL, resulting in diminished cell proliferation."

reach
"Inhibition of mTOR, even in the presence of phosphorylated STAT5 and Akt, blocked Otub1 protein expression and maintained GRAIL expression, resulting in the inhibition of cell proliferation."

reach
"Blocking mTOR prevents Otub1 protein expression and maintains GRAIL expression, which inhibits T cell proliferation."
Kinase-active MTOR increases the amount of OTUB1. 1 / 1
1 |

"Activation of mTOR allows selective mRNA translation, including the epistatic regulator of GRAIL, Otubain-1 (Otub1), whose expression results in the degradation of GRAIL and allows T cell proliferation."
MAPT affects OTUB1
4 | 1
4 | 1

"We focused particularly on Tau deubiquitination and identified three major candidate deubiquitinating enzymes, including Otub1, USP5, and USP9x, with Otub1 as the strongest Tau interactor according to statistical analysis"

"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."

reach
"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."

"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."

"Since Otub1 interacts with Tau and promotes phosphorylated and aggregated Tau levels in primary neurons, we hypothesized that Otub1 could act as a Tau deubiquitinase, interfering with pathological Tau degradation and hence Tau aggregation."
FIH affects OTUB1
| 5
FIH hydroxylates OTUB1. 5 / 5
| 5

reach
"Therefore, a possible contributory mechanism for the anti-inflammatory activity of hydroxylase inhibitors is through altered FIH dependent hydroxylation of OTUB1, leading to differential metabolism at inflamed sites."

reach
"These data provide a mechanistic link between FIH dependent hydroxylation of OTUB1 and alterations in cellular metabolism and contribute a further level of understanding to the vital link between cellular oxygen sensing mechanisms and the control of cellular metabolism."

reach
"Although OTUB1 hydroxylation by FIH regulates metabolic processes in the cell [XREF_BIBR], a role of OTUB1 in activating the NF-kappaB pathway under hypoxic conditions has yet to be established."

reach
"The exception to this, is hydroxylation of OTUB1 by FIH, where mutation of the acceptor asparagine changes the interactome of OTUB1 and gives rises to metabolic changes in the cell [XREF_BIBR]."

reach
"In our study, we found that N22, the site of OTUB1 hydroxylation by FIH, is located in a region of the protein that may be key to determining its activity."
CFTR affects OTUB1
| 2 3
| 2 3

sparser
"While the highest intensity signals corresponded to unmodified OTUB1 and the ΔF508-harboring CFTR nucleotide-binding domain used in this experiment, potentially indicating low levels of target engagement under these experimental conditions, we observed significant CFTR-OTUB1 complex formation with NJH-2-057 treatment, but not with DMSO vehicle or EN523 treatment ( xref – xref )."

reach
"While the highest intensity signals corresponded to unmodified OTUB1 and the ΔF508-harboring CFTR nucleotide-binding domain used in this experiment, potentially indicating low levels of target engagement under these experimental conditions, we observed significant CFTR-OTUB1 complex formation with NJH-2-057 treatment, but not with DMSO vehicle or EN523 treatment (Figure 3h–3i)."

reach
"Nonetheless, given that this OTUB1-CFTR complex was only observed with DUBTAC treatment but not with DMSO or EN523 treatment, our data strongly suggests that the DUBTAC enables ternary complex formation."

sparser
"Nonetheless, given that this OTUB1-CFTR complex was only observed with DUBTAC treatment but not with DMSO or EN523 treatment, our data strongly suggests that the DUBTAC enables ternary complex formation."

sparser
"Having identified NJH-2-057 as a DUBTAC that was capable of stabilizing mutant CFTR in cells, we next sought to confirm the formation of a ternary complex between CFTR, NJH-2-057, and OTUB1 in vitro using recombinant protein and native mass spectrometry (MS)-based approaches ( xref – xref )."
CD44 affects OTUB1
| 1 4
| 3

sparser
"By the same method, to avoid the issue that decreased SLC7A11 protein levels are the only factor for the decrease of the OTUB1-SLC7A11 interaction in CD44 knockdown cells (Input: lane 1 vs. lane 2, xref ), we normalized the amounts of SLC7A11 after immunoprecipitation (IP: lane 3 vs. lane 4, xref )."

sparser
"Since CD44 can stabilize SLC7A11 by enhancing the binding between SLC7A11 and OTUB1 ( xref ), it is very likely that CD44, OTUB1 and SLC7A11 form a stable three-protein complex that leads to more effective stabilization of SLC7A11."

sparser
"Thus, OTUB1 and CD44 interacts with the different domains of SLC7A11."
| 1 1

reach
"Interestingly, by co-immunoprecipitation assays, we found that CD44 also interacts with OTUB1 although the binding affinity between OTUB1 and CD44 is not very high (XREF_FIG)."

sparser
"Interestingly, by co-immunoprecipitation assays, we found that CD44 also interacts with OTUB1 although the binding affinity between OTUB1 and CD44 is not very high ( xref )."
4 |
Valproic acid decreases the amount of OTUB1. 4 / 4
4 |

No evidence text available

No evidence text available

No evidence text available

No evidence text available
RNF126 affects OTUB1
1 | 1 2
RNF126 ubiquitinates OTUB1.
| 1 1
RNF126 leads to the ubiquitination of OTUB1. 2 / 2
| 1 1

sparser
"RNF126 promotes ubiquitination of OTUB1, leading to reduced deubiquitinating activity towards TRAF3."

reach
"RNF126 promotes ubiquitination of OTUB1, leading to reduced deubiquitinating activity towards TRAF3."
RNF126 binds OTUB1.
1 | 1
1 | 1

No evidence text available

sparser
"We found that RNF126 also interacts with OTUB1, a deubiquitinating enzyme that negatively regulates K63-linked ubiquitination of TRAF3."
OTUB1 affects development endometriosis
| 4
OTUB1 activates development endometriosis. 4 / 4
| 4

eidos
"Thus , the knockdown of OTUB1 inhibits the development of endometriosis in vivo ."

eidos
"Limitations of the study In this study , we demonstrate that OTUB1 promotes the development of endometriosis via deubiquitination of HSF1 ."

eidos
"The results further show that OTUB1 promotes the development of endometriosis in vivo and in vitro ( Figure 8I ) ."

eidos
"In summary , OTUB1 promotes the development of endometriosis by up-regulating HSF1 ."
OTUB1 affects TPM2
| 4
OTUB1 deubiquitinates TPM2.
| 2
OTUB1 deubiquitinates TPM2. 2 / 2
| 2

reach
"For DA1 and DA2, their transcription is most likely regulated by OTU1 that acts as a transcriptional corepressor, deubiquitylating the DA1 and DA2 chromatin."

reach
"OTU1 Is Involved in Deubiquitylation of the DA1 and DA2 Chromatin."
OTUB1 decreases the amount of TPM2.
| 2
OTUB1 decreases the amount of TPM2. 2 / 2
| 2

reach
"These data suggest that OTU1 negatively regulates expression of DA1 and DA2 and that its loss of function results in transcriptional activation of these target genes.DA1, a ubiquitin-binding protein, and DA2, a RING-type E3 ubiquitin ligase, are known to interact with each other and negatively regulate the seed and organ size in Arabidopsis (Du et al., 2014, Li and Li, 2014, Li and Li, 2016, Xia et al., 2013)."

reach
"Consistent with the effect of the OTU1 loss-of-function mutations on the DA1 and DA2 transcription (see Figure 6), their effect on DA2 monoubiquitylation was more pronounced than that on DA1 monoubiquitylation."
OTUB1 affects TP53BP1
| 1 3
| 1 3

reach
"The depletion of OTUB1 results in persistent ubiquitin chain formation at DSB sites, and the overexpression of OTUB1 inhibits 53BP1 IRIF, suggesting that OTUB1 is involved in RNF8- and RNF168 dependent DDR."

reach
"Accordingly, the overexpression of OTUB1 inhibits K63 chain accumulation and 53BP1 IRIF."

reach
"Both OTUB1 and the catalytically inactive OTUB1 C91S mutant completely suppressed accumulation of 53BP1 at DSBs."

eidos
"Depletion of OTUB1 leads to persistent 53BP1 after DNA damage ."
OTUB1 affects NRAS
| 1 1
| 1

reach
"We found that OTUB1 formed a complex with either wt NRAS or constitutively active form of NRAS Q61K (Fig XREF_FIG D)."
RAS binds OTUB1 and NRAS. 1 / 1
| 1

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
OTUB1 affects NMRAL1
1 | 1
1 | 1

No evidence text available

reach
"We first screened the reported deubiquitinases for TRAF3 and found that HSCARG interacted with OTUB1 more potently than OTUB2, UCHL1, OTUD7B, and USP25 (XREF_FIG, XREF_SUPPLEMENTARY), and this interaction was enhanced by viral infection (XREF_FIG)."
OTUB1 affects IRF3
| 3
OTUB1 inhibits IRF3. 3 / 4
| 3

reach
"[172] Because various components are involved in virus induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG-I-, MDA5-, and MAVS mediated but not TBK1- and IRF3 mediated signaling."

reach
"Overexpression of OTUB1 and OTUB2 inhibited virus induced activation of IRF3 and NF-kappaB, transcription of the IFNB1 gene as well as cellular antiviral response, whereas knockdown of OTUB1 and OTUB2 had opposite effects."

reach
"The overexpression of OTUB1 inhibited virus induced activation of IRF3 and NF-kappaB, whereas knockdown of OTUB1 had the opposite effects."
OTUB1 affects HTT
| 4
HIF binds OTUB1 and HTT. 4 / 4
| 4

sparser
"Interestingly, purified FIH and OTUB1 did not form the HD under cell-free conditions (data not shown)."

sparser
"Taken together, our results demonstrate that FIH catalyses HD formation with OTUB1, which is remarkably sensitive to changes in oxygen availability within the physiologically relevant range, suggesting a function in oxygen-dependent signaling."

sparser
"The covalent FIH-OTUB1 HD formation may represent an alternative molecular mechanism for the cellular adaptation to oxygen changes over longer time periods, linking oxygen sensing and deubiquitinase activity."

sparser
"However, peptides corresponding to the suspected regions of FIH-OTUB1 HD formation could not be detected by MS, which is likely due to the unknown molecular weight of these unique peptides, and excludes a direct examination of the nature of the FIH-OTUB1 bond."
OTUB1 affects HSF1 protein stability
| 4
OTUB1 activates HSF1 protein stability. 4 / 4
| 4

eidos
"Here , we demonstrate that OTUB1 interacts with HSF1 and promotes HSF1 protein stability through deubiquitination ."

eidos
"In summary , OTUB1 promotes the HSF1 protein stability through the deubiquitination pathway ."

eidos
"And OTUB1 promoted HSF1 protein stability in dependence on its deubiquitinating enzyme activity ( Figure 2C ) ."

eidos
"OTUB1 promotes HSF1 protein stability via the ubiquitin-proteasome pathway Ovarian tumor B1 enhances heat shock transcription factor 1 transcriptional activity OTUB1 promoted the protein stability of HSF1 , so we next determined whether OTUB1 could regulate HSF1-mediated transcription ."
OTUB1 affects ESRRA
| 1 3
OTUB1 binds ESRRA.
| 3
| 2

sparser
"To further demonstrate that ERRα binds to the OTUB1 promoter through ERRE-S4, we conducted ChIP assays in HCT116 cells and used primers amplifying the +670/+901 region of OTUB1 promoter, containing ERRE-S4 (Figure xref A)."

sparser
"Our data show that OTUB1 is a novel target of ERRα and indicate that ERRα-OTUB1 signaling may play a significant role in CRC metastasis."
| 1

sparser
"In this study, we found that estrogen-related receptor alpha (ERRα, also called NR3B1) binds to OTUB1 promoter and regulates its expression in colorectal cancer."
OTUB1 activates ESRRA.
| 1
OTUB1 activates ESRRA. 1 / 1
| 1

reach
"Our data show that OTUB1 is a novel target of ERRalpha and indicate that ERRalpha-OTUB1 signaling may play a significant role in CRC metastasis."
| 1 1
| 1 1

reach
"Therefore, OTUB1 promotes breast tumorigenesis in vivo and in vitro via blocking MYC protein degradation."

eidos
"Previous research verified that OTUB1 promotes prostate cancer invasion in vitro and aggravates tumorigenesis in vivo via regulating RhoA activity and p53 expression ( Iglesias-Gato et al ., 2015 ) ."
OTUB1 affects CRC
| 2 2
OTUB1 binds CRC.
| 2
| 2

sparser
"Because high OTUB1 expression in primary CRC tissues is associated with lymph node status and distant metastasis, we analyzed whether OTUB1 was highly expressed in lymph node or metastatic tumor tissues."

sparser
"These results indicated that OTUB1 expression may be associated with CRC metastasis."
OTUB1 activates CRC.
| 2
OTUB1 activates CRC. 2 / 2
| 2

reach
"Subsequent experiments further suggested that OTUB1 promoted CRC malignancy by enhancing protein stability of β-catenin, via inhibition of its protein degradation by UPP pathway, which indicated its crucial role in enhancement of CRC tumor cellular proliferative and chemo-resistant capabilities."

reach
"OTUB1 promotes CRC metastasis by facilitating EMT and acts as a potential distant metastasis marker and prognostic factor in CRC."
OTUB1 affects CD8
| 4
OTUB1 inhibits CD8.
| 2
OTUB1 inhibits CD8. 2 / 2
| 2

reach
"Deletion of Otub1 profoundly enhances anticancer immunity by unleashing the activity of CD8 + T cells and NK cells."

reach
"Deubiquitinase Otub1 negatively regulates IL-15 signaling in CD8 T cells and NK cells."
OTUB1 activates CD8.
| 2
OTUB1 activates CD8. 2 / 2
| 2

reach
"Otub1 deficiency greatly enhances antigen specific CD8 T cell responses and promotes their metabolic reprogramming and effector function in antitumor immunity."

reach
"Otub1 deficiency in mice causes aberrant responses of CD8 + T cells to IL-15, rendering naive CD8 + T cells hypersensitive to antigen stimulation characterized by enhanced metabolic reprograming and effector functions."
OTUB1 affects CD274
| 4
OTUB1 ubiquitinates CD274.
| 2
OTUB1 ubiquitinates CD274. 2 / 2
| 2

reach
"In reciprocal experiments, PKP3 overexpression significantly suppressed PD-L1 ubiquitination, which was completely reversed by OTUB1 silencing (Fig. 6I)."

reach
"Although PD-L1 has been reported to be ubiquitinated or deubiquitinated by CSN5, USP22, OTUB1, FBXO38, STUB1, SPOP or HRD1 [28], only OTUB1 silencing blocked the regulatory effect of PKP3 on PD-L1 expression (Fig. S6D-I, Fig. 6F-G)."
OTUB1 activates CD274.
| 2
OTUB1 activates CD274. 2 / 2
| 2

reach
"Here, we report that the deubiquitinase OTUB1 positively regulates PD-L1 stability and mediates cancer immune responses through the PD-1 and PD-L1 axis."

reach
"OTUB1 deubiquitinated and thus prevented the degradation of PD-L1."
| 4
| 3

sparser
"Intriguingly, OTUB1 inhibits UBC13 and UBE2D/2E-family E2 conjugating enzymes in a DUB activity-independent manner [ xref ]."

sparser
"Instead, OTUB1 binds and inhibits the RNF168-associated E2s (UBC13/UBE2N and E2s of the UBE2D/UBE2E families) through assembly of a pseudocleavage product in its catalytic site ( Juang et al., 2012 ; [MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"OTUB1 also inhibits E2s of the UBE2D and UBE2E families."
| 1

sparser
"Binding of OTUB1 and E2 enzymes, including UbcH5 and Ubc13, also regulates OTUB1 enzymatic activity towards K48 ubiquitin chains [ xref ]."
NRAS affects OTUB1
| 1 1
| 1

reach
"We found that OTUB1 formed a complex with either wt NRAS or constitutively active form of NRAS Q61K (Fig XREF_FIG D)."
RAS binds OTUB1 and NRAS. 1 / 1
| 1

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
NMRAL1 affects OTUB1
1 | 1
1 | 1

No evidence text available

reach
"We first screened the reported deubiquitinases for TRAF3 and found that HSCARG interacted with OTUB1 more potently than OTUB2, UCHL1, OTUD7B, and USP25 (XREF_FIG, XREF_SUPPLEMENTARY), and this interaction was enhanced by viral infection (XREF_FIG)."
IL1B affects OTUB1
| 4
IL1B increases the amount of OTUB1.
| 3
IL1B increases the amount of OTUB1. 3 / 3
| 3

reach
"This suggested that the IL-1beta and ATS may upregulate the expression of OTUB1 in MC."

reach
"The protein expression of OTUB1 and DCN in MC were mediated by IL-1beta and ATS."

reach
"These results demonstrated that IL-1beta or ATS could upregulate the protein level of OTUB1 in MC."
IL1B activates OTUB1.
| 1
IL1B activates OTUB1. 1 / 1
| 1

reach
"In our study, constitutive expression of OTUB1 was shown, and upregulation of OTUB1 mRNA and protein level induced by IL-1beta and ATS were observed in cultured MC."
HTT affects OTUB1
| 4
HIF binds OTUB1 and HTT. 4 / 4
| 4

sparser
"Interestingly, purified FIH and OTUB1 did not form the HD under cell-free conditions (data not shown)."

sparser
"Taken together, our results demonstrate that FIH catalyses HD formation with OTUB1, which is remarkably sensitive to changes in oxygen availability within the physiologically relevant range, suggesting a function in oxygen-dependent signaling."

sparser
"The covalent FIH-OTUB1 HD formation may represent an alternative molecular mechanism for the cellular adaptation to oxygen changes over longer time periods, linking oxygen sensing and deubiquitinase activity."

sparser
"However, peptides corresponding to the suspected regions of FIH-OTUB1 HD formation could not be detected by MS, which is likely due to the unknown molecular weight of these unique peptides, and excludes a direct examination of the nature of the FIH-OTUB1 bond."
EN523 affects OTUB1
| 4
EN523 binds OTUB1.
| 2
OTUB1 binds EN523. 2 / 2
| 2

reach
"We next used NMR analysis to further characterize EN523 binding to OTUB1."

reach
"We next performed liquid chromatography-tandem mass spectrometry analysis (LC-MS/MS) of tryptic peptides from EN523 bound to OTUB1 and showed that EN523 selectively targets C23, with no detectable modification of the catalytic C91 (Figure 2d)."
EN523 ubiquitinates OTUB1.
| 1
EN523 leads to the ubiquitination of OTUB1. 1 / 1
| 1

reach
"Following these data, we performed an in vitro reconstituted OTUB1 deubiquitination activity assay monitoring monoubiquitin release from di-ubiquitin and demonstrated that EN523 does not inhibit OTUB1 deubiquitination activity (Figure 2e) ."
EN523 inhibits OTUB1.
| 1
EN523 inhibits OTUB1. 1 / 1
| 1

reach
"Next, we investigated if the covalent binding of EN523 to C23 prevents the interaction of OTUB1 with the ubiquitin-loaded and free form of ubiquitin-conjugating enzyme E2 D2 (UBE2D2)."
ATS affects OTUB1
| 4
ATS increases the amount of OTUB1.
| 3
ATS increases the amount of OTUB1. 3 / 3
| 3

reach
"The protein expression of OTUB1 and DCN in MC were mediated by IL-1beta and ATS."

reach
"This suggested that the IL-1beta and ATS may upregulate the expression of OTUB1 in MC."

reach
"These results demonstrated that IL-1beta or ATS could upregulate the protein level of OTUB1 in MC."
ATS activates OTUB1.
| 1
ATS activates OTUB1. 1 / 1
| 1

reach
"In our study, constitutive expression of OTUB1 was shown, and upregulation of OTUB1 mRNA and protein level induced by IL-1beta and ATS were observed in cultured MC."
AKT affects OTUB1
| 4
| 4

sparser
"In primary OT-I CD8 T cells, the AKT-Otub1 interaction was barely detectable at steady state but was strongly induced by IL-15 ( xref )."

sparser
"IL-15-stimulated AKT activation is negatively regulated by Otub1, which physically interacts with AKT and prevents its K63 ubiquitination and membrane translocation. xref Interestingly, in IL-15-exposed cells, Otub1 is relocated to the membrane compartment, a mechanism that enables Otub1 to inhibit AKT ubiquitination and activation induced by both IL-15 and TCR signals (Fig. xref )."

sparser
"Interestingly, AKT was physically associated with Otub1 in 15R-KIT cells, which was strongly enhanced upon IL-15 stimulation ( xref )."

sparser
"The Otub1-AKT binding was also readily detected under transfection conditions ( xref )."
YpkA affects OTUB1
| 1 2
YpkA phosphorylates OTUB1. 3 / 3
| 1 2

sparser
"During Yersinia infection OTUB1 can be phosphorylated by a bacterial kinase YpkA which modulates cellular susceptibility to Yersinia invasion [ xref ]."

reach
"We demonstrate that otubain 1 is phosphorylated by YpkA in vitro and interacts with YpkA and actin in vivo."

sparser
"We demonstrate that otubain 1 is phosphorylated by YpkA in vitro and interacts with YpkA and actin in vivo."
Phospho-SMAD2/3 affects OTUB1
| 3
OTUB1 binds phospho-SMAD2/3. 3 / 3
| 3

reach
"The ligand inducible interaction between OTUB1 and phospho-SMAD2/3 indicates that OTUB1 could have a regulatory role in the TGFbeta pathway."

reach
"We have demonstrated that OTUB1 binds to phospho-SMAD2/3 and E2 ubiquitin conjugating enzymes, thereby inhibiting the polyubiquitylation of SMAD2/3 in vitro."

reach
"These observations imply that SMAD4 is not required for the interaction between OTUB1 and phospho-SMAD2/3."
MtnN affects OTUB1
| 3
| 3

sparser
"As shown in Figure  xref C and D, OTUB1 expression was negatively associated with PFS ( P <0.001, HR 2.157, 95% CI, 1.393-3.341) and OS ( P <0.001, HR 2.187, 95% CI, 1.421-3.387)."

sparser
"So OTUB1 expression may be negatively associated with PFS and OS in stage IV patients in a small specimen."

sparser
"The subgroup analysis, OTUB1 expression was negatively associated with PFS and OS in stage IV and not associated with stage I, II, III (Additional file xref : Figure S2)."
Ubv.B1.1 affects OTUB1
| 3
OTUB1 binds Ubv.B1.1. 3 / 3
| 3

reach
"Although Ubv.B1.1 binds to OTUB1 much more tightly than does Ub.wt, it shows a compromised ability to promote complex formation (XREF_FIG), suggesting an alteration in binding mode to OTUB1 relative to Ub.wt."

reach
"Although Ubv.B1.1 binds to OTUB1 much more tightly than wt Ub, it showed a compromised ability to promote complex formation, suggesting an alteration in the binding mode."

reach
"Purified Ubv.B1.1 bound to OTUB1 with a dissociation constant (K d) of 20 nM (XREF_SUPPLEMENTARY) and efficiently inhibited the cleavage of K48 linked di-Ub (XREF_SUPPLEMENTARY), which is consistent with a substrate-competitive binding mode."
USP8 affects RNF128
1 | 2
1 | 2

sparser
"Otub1 forms a trimolecular complex with USP8 and GRAIL, and upregulated Otub1 promotes GRAIL's proteosomal degradation."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available
UCN2 affects OTUB1
| 3
| 3

sparser
"In the two ubiquitous SRP-OTUs, the abundant SRP-OTU1 affiliates with Halomonas , a halophilic genus involving in the sulfur cycle [ xref ], though its exact role in sulfate/sulfite reduction awaits further study."

sparser
"SRP-OTU1 (genus Halomonas ; phylum Proteobacteria ) was, on average, the most abundant in all lakes."

sparser
"Of the 120 SRP-OTUs, the majority (> 75%) were found to be lake-specific, as they were observed in high relative abundance in only single lake, and only two SRP-OTUs (SRP-OTU1 affiliated with Halomonas ) and (SRP-OTU8 affiliated with Shewanlla ) were present in high relative abundance in all lakes."
UBE2V1 affects OTUB1
| 1 2
UBE2V1 binds OTUB1.
| 2
| 2

sparser
"We unexpectedly find that OTUB1 binding to UBC13∼Ub is allosterically regulated by free ubiquitin, which binds to a second site in OTUB1 and increases its affinity for UBC13∼Ub, while at the same time disrupting interactions with UEV1A in a manner that depends on the OTUB1 N terminus."

sparser
"We unexpectedly find that OTUB1 binding to UBC13~Ub is allosterically regulated by free ubiquitin, which binds to a second site in OTUB1 and increases its affinity for UBC13~Ub, while at the same time disrupting interactions with UEV1a in a manner that depends upon the OTUB1 N-terminus."
UBE2V1 activates OTUB1.
| 1
UBE2V1 activates OTUB1. 1 / 1
| 1

reach
"In contrast to UBC13, the protein stability of Uev1a, the noncatalytic E2-like partner protein of UBC13, in TgPFN-stimulated BMDCs was independent of OTUB1 (Supplementary Fig. 3e)."
UBE2L3 affects OTUB1
1 | 1 1
1 | 1 1

No evidence text available

reach
"In contrast, UbcH7, which is not inhibited by OTUB1, does not interact with OTUB1 in our NMR experiments (XREF_SUPPLEMENTARY)."

sparser
"In contrast, UbcH7, which is not inhibited by OTUB1, does not interact with OTUB1 in our NMR experiments ( xref )."
UBE2E3 affects OTUB1
2 | 1
2 | 1

No evidence text available

reach
"We were unable to measure the K d for the interactions between OTUB1 and UBE2E2 or UBE2E3, as the two proteins precipitated in the ITC cell."

No evidence text available
UBE2E2 affects OTUB1
2 | 1
2 | 1

reach
"We were unable to measure the K d for the interactions between OTUB1 and UBE2E2 or UBE2E3, as the two proteins precipitated in the ITC cell."

No evidence text available

No evidence text available
TMPO-AS1 affects OTUB1
| 3
OTUB1 binds TMPO-AS1. 3 / 3
| 3

reach
"The interactions between E2F1, OTUB1, and TMPO-AS1 were predicted via Agostini et al. introduced catRAPID (http://s.tartaglialab.com/page/catrapid_group), a server to identify the interaction of RNA and protein and Tuvshinjargal et al. developed a web server named PRIdictor (http://bclab.inha.ac.kr/pridictor) to reveal mutual binding in protein and RNA."

reach
"Of note, despite the direct association between TMPO-AS1 and OTUB1, TMPO-AS1 failed to alter the OTUB1 protein expression (XREF_FIG)."

reach
"Furthermore, catRAPID showed that a region of TMPO-AS1 (located at 76-127 nt) exhibits a high potential of interaction with some of the OTUB1 amino acid residues (51-152; XREF_SUPPLEMENTARY), further supporting the association between TMPO-AS1 and OTUB1."
STAMBP affects OTUB1
2 | 1
2 | 1

No evidence text available

No evidence text available

sparser
"Our redesigned forms of K48-specific OTUB1 and K63-specific AMSH are highly active and have proven to be useful for this purpose."
SMAD4 affects OTUB1
2 | 1
2 | 1

No evidence text available

reach
"As shown in XREF_FIG, OTUB1 selectively binds components of the active phospho, SMAD2/3, and SMAD4 complex; however, it was not clear whether SMAD4 was required for this interaction."

No evidence text available
SLC7A11 affects CD44
| 3
| 3

sparser
"By the same method, to avoid the issue that decreased SLC7A11 protein levels are the only factor for the decrease of the OTUB1-SLC7A11 interaction in CD44 knockdown cells (Input: lane 1 vs. lane 2, xref ), we normalized the amounts of SLC7A11 after immunoprecipitation (IP: lane 3 vs. lane 4, xref )."

sparser
"Since CD44 can stabilize SLC7A11 by enhancing the binding between SLC7A11 and OTUB1 ( xref ), it is very likely that CD44, OTUB1 and SLC7A11 form a stable three-protein complex that leads to more effective stabilization of SLC7A11."

sparser
"Thus, OTUB1 and CD44 interacts with the different domains of SLC7A11."
RNF128 affects USP8
1 | 2
1 | 2

sparser
"Otub1 forms a trimolecular complex with USP8 and GRAIL, and upregulated Otub1 promotes GRAIL's proteosomal degradation."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available
RHOA affects OTUB1
1 | 1 1
1 | 1 1

reach
"Our own attempts to investigate an interaction between RhoA and OTUB1 in LNCaP-FGC cells by multiple means have failed to demonstrate a direct association."

sparser
"Our own attempts to investigate an interaction between RhoA and OTUB1 in LNCaP-FGC cells by multiple means have failed to demonstrate a direct association."

No evidence text available
PTEN affects OTUB1
| 1 1
PTEN binds OTUB1.
| 1
| 1

trips
"PTEN recruits the deubiquitinase OTUB1 to mediate RPA1 deubiquitination."
PTEN activates OTUB1.
| 1
PTEN bound to RPA1 activates OTUB1. 1 / 1
| 1

reach
"It was reported that several proteins such as SLFN11, G9a and Cdc45 directly associated with RPA1 and affected its ssDNA binding capacity and chromatin loading, and PTEN interacts with RPA1 to promote the replication fork recruitment of RPA1 by recruiting OTUB1 to deubiquitinate RPA1."
OTUB1 affects ubiquitination FOXM1
| 3
OTUB1 inhibits ubiquitination FOXM1. 3 / 3
| 3

eidos
"OTUB1 suppressed ubiquitination of FOXM1 in RCC ."

eidos
"In vivo ubiquitination assay showed that OTUB1 knockdown drastically promoted ubiquitination of FOXM1 ( Fig. 3c ) ."

eidos
"Taken together , these results revealed that OTUB1 suppressed ubiquitination of FOXM1 in RCC ."
OTUB1 affects polyubiquitin chains
| 3
OTUB1 activates polyubiquitin chains. 3 / 3
| 3

reach
"Notably, UCHL1, OTUB1, OTUB2, OTUD5, USP25, MYSM1, and MCPIP1 (Figure 3A) negatively regulate virus-induced IFN-I production and antiviral activities by cleaving K63-linked or other types of polyubiquitin chains from TRAF3 or TRAF6."

reach
"29 Intriguingly, OTUB1 preferentially targets polyubiquitin chains joined by K48-bonds."

reach
"28 For example, OTUB1 preferentially targets polyubiquitin chains joined by Lys48 bonds, while OTUB2 has specificity towards chains associated through Lys63."
OTUB1 affects phospho-SMAD2/3
| 3
OTUB1 binds phospho-SMAD2/3. 3 / 3
| 3

reach
"The ligand inducible interaction between OTUB1 and phospho-SMAD2/3 indicates that OTUB1 could have a regulatory role in the TGFbeta pathway."

reach
"We have demonstrated that OTUB1 binds to phospho-SMAD2/3 and E2 ubiquitin conjugating enzymes, thereby inhibiting the polyubiquitylation of SMAD2/3 in vitro."

reach
"These observations imply that SMAD4 is not required for the interaction between OTUB1 and phospho-SMAD2/3."
OTUB1 affects mtnN
| 3
| 3

sparser
"As shown in Figure  xref C and D, OTUB1 expression was negatively associated with PFS ( P <0.001, HR 2.157, 95% CI, 1.393-3.341) and OS ( P <0.001, HR 2.187, 95% CI, 1.421-3.387)."

sparser
"So OTUB1 expression may be negatively associated with PFS and OS in stage IV patients in a small specimen."

sparser
"The subgroup analysis, OTUB1 expression was negatively associated with PFS and OS in stage IV and not associated with stage I, II, III (Additional file xref : Figure S2)."

reach
"In contrast, impaired OTUB1-deficient DC activation and cytokine production by OTUB1-deficient DCs protected mice from lipopolysaccharide-induced immunopathology."

reach
"In addition, engagement of TLR2, TLR7, and TLR9, which all signal via MyD88, and TLR3, which signals in a MyD88-independent manner through TRIF, resulted in significantly reduced IL-12, TNF, and IL-6 production by OTUB1-deficient BMDCs (Supplementary Fig. 2c), illustrating the stimulatory role of OTUB1 in proinflammatory TLR signaling.To understand how OTUB1 promotes cytokine production in DCs, we stimulated FLT3L-expanded BMDCs with TLA (Fig. 2c), TgPFN (Fig. 2d), and LPS (Fig. 2e) and analyzed signaling molecules by WB analysis."

reach
"Mechanistically, OTUB1 promoted cytokine production in DCs by downregulating K48-linked ubiquitination and increasing the stability of UBC13, an E2-conjugating enzyme critical for the activation of canonical NF-κB and MAPK signaling."
OTUB1 affects cell death
| 1 1
OTUB1 inhibits cell death.
| 1
| 1

eidos
"Because Otub1 is a deubiquitinase of c-Maf and inhibition of Otub1 leads to c-Maf degradation and MM cell death ."
OTUB1 activates cell death.
| 1
| 1

reach
"Downregulation of OTUB1 promotes TWEAK- and IAP antagonist stimulated caspase activation and cell death, and enhances c-IAP1 degradation."
OTUB1 affects Ubv.B1.1
| 3
OTUB1 binds Ubv.B1.1. 3 / 3
| 3

reach
"Although Ubv.B1.1 binds to OTUB1 much more tightly than does Ub.wt, it shows a compromised ability to promote complex formation (XREF_FIG), suggesting an alteration in binding mode to OTUB1 relative to Ub.wt."

reach
"Although Ubv.B1.1 binds to OTUB1 much more tightly than wt Ub, it showed a compromised ability to promote complex formation, suggesting an alteration in the binding mode."

reach
"Purified Ubv.B1.1 bound to OTUB1 with a dissociation constant (K d) of 20 nM (XREF_SUPPLEMENTARY) and efficiently inhibited the cleavage of K48 linked di-Ub (XREF_SUPPLEMENTARY), which is consistent with a substrate-competitive binding mode."
OTUB1 affects UCN2
| 3
| 3

sparser
"In the two ubiquitous SRP-OTUs, the abundant SRP-OTU1 affiliates with Halomonas , a halophilic genus involving in the sulfur cycle [ xref ], though its exact role in sulfate/sulfite reduction awaits further study."

sparser
"SRP-OTU1 (genus Halomonas ; phylum Proteobacteria ) was, on average, the most abundant in all lakes."

sparser
"Of the 120 SRP-OTUs, the majority (> 75%) were found to be lake-specific, as they were observed in high relative abundance in only single lake, and only two SRP-OTUs (SRP-OTU1 affiliated with Halomonas ) and (SRP-OTU8 affiliated with Shewanlla ) were present in high relative abundance in all lakes."
OTUB1 affects UBE2E3
2 | 1
2 | 1

No evidence text available

reach
"We were unable to measure the K d for the interactions between OTUB1 and UBE2E2 or UBE2E3, as the two proteins precipitated in the ITC cell."

No evidence text available
OTUB1 affects UBE2E2
2 | 1
2 | 1

reach
"We were unable to measure the K d for the interactions between OTUB1 and UBE2E2 or UBE2E3, as the two proteins precipitated in the ITC cell."

No evidence text available

No evidence text available
OTUB1 affects UBE2E1 autoubiquitination
| 3
OTUB1 inhibits UBE2E1 autoubiquitination. 3 / 3
| 3

eidos
"We show here that OTUB1 noncatalytically inhibits UBE2E1 autoubiquitination in vitro in either the presence or absence of E3 ligase ( Fig. 4 ) ."

eidos
"We show that OTUB1 suppresses UBE2E1 autoubiquitination in vitro and in cells , thereby preventing UBE2E1 from being targeted to the proteasome for degradation ."

eidos
"OTUB1 inhibits UBE2E1 autoubiquitination In previous studies in which OTUB1 has been shown to stabilize a substrate through its noncatalytic activity , OTUB1 inhibits the activity of an E2 that conjugates Lys-48-linked polyubiquitin to the substrate ( 21-26 ) ."
OTUB1 affects TMPO-AS1
| 3
OTUB1 binds TMPO-AS1. 3 / 3
| 3

reach
"The interactions between E2F1, OTUB1, and TMPO-AS1 were predicted via Agostini et al. introduced catRAPID (http://s.tartaglialab.com/page/catrapid_group), a server to identify the interaction of RNA and protein and Tuvshinjargal et al. developed a web server named PRIdictor (http://bclab.inha.ac.kr/pridictor) to reveal mutual binding in protein and RNA."

reach
"Of note, despite the direct association between TMPO-AS1 and OTUB1, TMPO-AS1 failed to alter the OTUB1 protein expression (XREF_FIG)."

reach
"Furthermore, catRAPID showed that a region of TMPO-AS1 (located at 76-127 nt) exhibits a high potential of interaction with some of the OTUB1 amino acid residues (51-152; XREF_SUPPLEMENTARY), further supporting the association between TMPO-AS1 and OTUB1."
OTUB1 affects TGFBR1
2 | 1
2 | 1

No evidence text available

sparser
"Furthermore, upon co-expression in HEK293 cells, OTUB1 interacted with ALK5 ( xref )."

No evidence text available
OTUB1 affects STAMBP
2 | 1
2 | 1

No evidence text available

No evidence text available

sparser
"Our redesigned forms of K48-specific OTUB1 and K63-specific AMSH are highly active and have proven to be useful for this purpose."
OTUB1 affects SMAD4
2 | 1
2 | 1

No evidence text available

reach
"As shown in XREF_FIG, OTUB1 selectively binds components of the active phospho, SMAD2/3, and SMAD4 complex; however, it was not clear whether SMAD4 was required for this interaction."

No evidence text available
OTUB1 affects RNF128, and USP8
1 | 2
1 | 2

sparser
"Otub1 forms a trimolecular complex with USP8 and GRAIL, and upregulated Otub1 promotes GRAIL's proteosomal degradation."

sparser
"USP8 can form a complex with RNF128 and OTUB1 to regulate the anergy of T-cells mediated by RNF128 ( xref )."

No evidence text available
OTUB1 affects Neoplasms
| 3
| 3

eidos
"Subsequent experiments further suggested that OTUB1 promoted CRC malignancy by enhancing protein stability of beta-catenin , via inhibition of its protein degradation by UPP pathway , which indicated its crucial role in enhancement of CRC tumor cellular proliferative and chemo-resistant capabilities ."

eidos
"26 We have also found that OTUB1 promotes tumour progression with an abnormally increased expression in ovarian cancer ."

eidos
"OTUB1 promotes tumor progression in two ways : to stabilize the expression of oncogenic genes by inhibiting the ubiquitination of target protein , and the other mode does not depend on the deproteinization manner ( Saldana et al ., 2019 ) but directly interacts with E2 ubiquitin ligase ."
OTUB1 affects NR4A1
| 2 1
OTUB1 binds NR4A1.
| 1 1
| 1 1

sparser
"We found that OTUB1 interacted with Nur77 to deubiquitinate it, thereby stabilizing Nur77 in an Asp88-dependent manner."

reach
"We found that OTUB1 interacted with Nur77 to deubiquitinate it, thereby stabilizing Nur77 in an Asp88 dependent manner."
OTUB1 activates NR4A1.
| 1
OTUB1 activates NR4A1. 1 / 1
| 1

reach
"OTUB1 modulated the stability of Nur77 as a counterpart of tripartite motif 13 (Trim13)."
OTUB1 affects NFKB2
| 3
OTUB1 activates NFKB2. 3 / 3
| 3

reach
"Preventing abnormal NF-kappaB activation and autoimmunity by Otub1 mediated p100 stabilization."

reach
"Additionally, there is evidence that OTUB-1 deficiency leads to a gradual degradation of the NF-kappaB precursor protein p100 to p52, which culminates in NF-kappaB activity induction [XREF_BIBR]."

reach
"Otub1 deficiency not only promotes signal induced p100 processing and noncanonical NF-kappaB activation but also causes steady-state p100 degradation, leading to aberrant NF-kappaB activation in the canonical pathway."
OTUB1 affects MAP3K7
| 1 2
OTUB1 activates MAP3K7. 3 / 3
| 1 2

reach
"Since OTUB1-competent BMDCs showed stronger activation of TAK1 and production of the cytokines IL-12, TNF, and IL-6 upon engagement of TLR2, TLR7, TLR9, and IL-1R, all of which signal via MyD88, and upon TNF stimulation and poly I:C-induced TLR3 activation, both of which induce MyD88-independent signaling, OTUB1 may contribute to proinflammatory DC responses in a wide range of infections and inflammatory disorders."

sparser
"Recent reports showed that TAK1 kinase and OTUB1 controls NF-κB activation using similar Ube2v1-UBC13/TRAF6 signaling axis."

sparser
"Recent reports showed that TAK1 kinase and OTUB1 controls NF-κB activation using similar Ube2v1-UBC13/TRAF6 signaling axis."
OTUB1 affects K48-Ub 2
| 3
OTUB1 binds K48-Ub 2. 3 / 3
| 3

reach
"To examine further the binding between hOtu1 and K48-Ub 2, we measured the NMR chemical shift perturbations that resulted from titration of catalytically-inactive hOtu1C91S into 15 N labeled K48-Ub 2."

reach
"The K m was determined to be 78 +/- 15 muM, which suggests that binding between hOtu1 and K48-Ub 2 is relatively weak and is consistent with the results of the NMR titrations."

reach
"To probe further the binding between hOtu1 and K48-Ub 2, we measured the substrate concentration dependence of the cleavage rate."
OTUB1 affects Hypoxia
| 3
OTUB1 activates Hypoxia. 3 / 3
| 3

reach
"Furthermore, OTUB1 promotes hypoxia-induced glycolytic reprogramming for cellular metabolic adaptation."

reach
"In this study, we found that OTUB1 augments hypoxia signaling independent of PHDs/VHL and FIH."

reach
"OTUB1 augments hypoxia signaling via its non-canonical ubiquitination inhibition of HIF-1α during hypoxia adaptation."
OTUB1 affects HIF1AN
3 |
3 |

No evidence text available

No evidence text available

No evidence text available
OTUB1 affects EYA1
| 2 1
OTUB1 binds EYA1.
| 1 1
| 1 1

sparser
"Mechanistically, OTUB1 could interact with EYA1 directly and deubiquitinate EYA1 to stabilize it."

reach
"Mechanistically, OTUB1 could interact with EYA1 directly and deubiquitinate EYA1 to stabilize it."
OTUB1 deubiquitinates EYA1.
| 1
OTUB1 deubiquitinates EYA1. 1 / 1
| 1

reach
"Mechanistically, OTUB1 could interact with EYA1 directly and deubiquitinate EYA1 to stabilize it."

reach
"It was reported that Otub1, a deubiquitinase, also negatively regulates the DDR in a catalytically independent manner by regulating the activity of UBC13, an E2 ubiquitin conjugating enzyme for RNF8."

sparser
"How does OTUB1 inhibit ubiquitination-dependent DDR?"

reach
"revealed that OTUB1 negatively regulates the DDR by inhibiting the RNF168 pathway and showed that depletion of the negative DDR regulator is able to partially rescue the suppressed IR induced 53BP1 focus formation caused by ATM inhibitor."

reach
"Although OTUB1 functions downstream of ATM in response to DNA damage, because pharmaceutical inhibition of the ATM is partial, removal of the DDR negative regulator OTUB1 would increase the DNA damage response."

reach
"Recent study indicated that OTUB1 is an inhibitor of the DNA damage response that suppresses poly- but not mono-ubiquitination [XREF_BIBR]."

reach
"We recently reported that OTUB1, a deubiquitylase, inhibits the DNA damage response independently of its isopeptidase activity."

reach
"In contrast to BRCC36, USP16 and USP3, OTUB1 inhibits the DSB ubiquitin response downstream of RNF8, at the level of RNF168."

reach
"Remarkably, depletion of OTUB1 restored a pharmacologically disabled DSB response, indicating that targeting the OTUB1-E2 interaction might be an attractive route for the development of agents that bolster DSB repair.Another important example of the role played by DUBs in DNA repair relates to USP1, a DUB that modulates both FANCD2/FANCI and PCNA ubiquitylation [196, 197] ."

reach
"The otubain family DUB OTUB1 negatively regulates DSB dependent ubiquitination differently than these DUBs."
OTUB1 affects CTNNB1
| 3
OTUB1 activates CTNNB1.
| 2
OTUB1 activates CTNNB1. 2 / 2
| 2

reach
"Subsequent experiments further suggested that OTUB1 promoted CRC malignancy by enhancing protein stability of β-catenin, via inhibition of its protein degradation by UPP pathway, which indicated its crucial role in enhancement of CRC tumor cellular proliferative and chemo-resistant capabilities."

reach
"At the same time, a high level of N-cadherin expression blocks beta-catenin entry into the nucleus [XREF_BIBR], so the changes in beta-catenin mediated by OTUB1 were observed in the cytoplasm in our model, which might be the reason why TCF1, LEF1 were not activated in our models (Additional file 11 : Figure S9)."
OTUB1 increases the amount of CTNNB1.
| 1
OTUB1 increases the amount of CTNNB1. 1 / 1
| 1

reach
"In contrast, the knockdown of OTUB1 in 11Z and HESC cells increased the expression of E-cadherin and decreased the expression of Vimentin, β-catenin, and α-SMA at the mRNA level (Figure 5F)."
OTUB1 affects CCNE1
| 3
OTUB1 activates CCNE1. 3 / 3
| 3

eidos
"OTUB1 promotes and regulates the expression of Cyclin E1 ."

eidos
"To investigate the effect of OTUB1 on cell proliferation , we found that increased OTUB1 could increase the expression of Cyclin E1 ."

eidos
"The results demonstrated that OTUB1 could promote the expression of Cyclin E1 , while Cyclin E1 expression was obviously decreased after transfection with Cyclin E1 siRNA ."
K48-Ub 2 affects OTUB1
| 3
OTUB1 binds K48-Ub 2. 3 / 3
| 3

reach
"To examine further the binding between hOtu1 and K48-Ub 2, we measured the NMR chemical shift perturbations that resulted from titration of catalytically-inactive hOtu1C91S into 15 N labeled K48-Ub 2."

reach
"The K m was determined to be 78 +/- 15 muM, which suggests that binding between hOtu1 and K48-Ub 2 is relatively weak and is consistent with the results of the NMR titrations."

reach
"To probe further the binding between hOtu1 and K48-Ub 2, we measured the substrate concentration dependence of the cleavage rate."
HIF1AN affects OTUB1
3 |
3 |

No evidence text available

No evidence text available

No evidence text available
FOXM1 over-expression affects OTUB1
| 3
FOXM1 over-expression inhibits OTUB1. 3 / 3
| 3

eidos
"All these results indicated that inhibition ability of OTUB1 knockdown on RCC progression was reversed by FOXM1 over-expression , confirming the role of OTUB1 / FOXM1 axis on the regulation of RCC progression ."

eidos
"Functional assays indicated that inhibition ability of OTUB1 knockdown on RCC progression was reversed by FOXM1 over-expression , suggesting OTUB1 / FOXM1 axis plays a role on the regulation of RCC progression ."

eidos
"Inhibition ability of OTUB1 knockdown on RCC progression was reversed by FOXM1 over-expression ."
ESRRA affects OTUB1
| 3
| 2

sparser
"To further demonstrate that ERRα binds to the OTUB1 promoter through ERRE-S4, we conducted ChIP assays in HCT116 cells and used primers amplifying the +670/+901 region of OTUB1 promoter, containing ERRE-S4 (Figure xref A)."

sparser
"Our data show that OTUB1 is a novel target of ERRα and indicate that ERRα-OTUB1 signaling may play a significant role in CRC metastasis."
| 1

sparser
"In this study, we found that estrogen-related receptor alpha (ERRα, also called NR3B1) binds to OTUB1 promoter and regulates its expression in colorectal cancer."
ESR1 affects OTUB1
3 |
3 |

No evidence text available

No evidence text available

No evidence text available
DOA1 affects Cdc48
| 3
OTUB1 binds DOA1 and Cdc48. 3 / 3
| 3

sparser
"Notably, Cdc48 can bind Otu1 and Ufd3 simultaneously, making a cooperation of both inhibitory mechanisms possible."

sparser
"The DUB Otu1 can bind simultaneously with Ufd3 to Cdc48."

sparser
"One view is that the binding of Otu1 and Ufd3 to the Cdc48 complex primes this enzyme to inhibit ubiquitination, and thus degradation, of ERAD substrates."
CD44 affects SLC7A11
| 3
| 3

sparser
"By the same method, to avoid the issue that decreased SLC7A11 protein levels are the only factor for the decrease of the OTUB1-SLC7A11 interaction in CD44 knockdown cells (Input: lane 1 vs. lane 2, xref ), we normalized the amounts of SLC7A11 after immunoprecipitation (IP: lane 3 vs. lane 4, xref )."

sparser
"Since CD44 can stabilize SLC7A11 by enhancing the binding between SLC7A11 and OTUB1 ( xref ), it is very likely that CD44, OTUB1 and SLC7A11 form a stable three-protein complex that leads to more effective stabilization of SLC7A11."

sparser
"Thus, OTUB1 and CD44 interacts with the different domains of SLC7A11."
Polyubiquitin affects Ubiquitin
| 2
Ubiquitin binds OTUB1 and polyubiquitin. 2 / 2
| 2

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 enzyme stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."
2 |
Hsa-miR-542-3p decreases the amount of OTUB1. 2 / 2
2 |

No evidence text available

No evidence text available

reach
"Although this study did not examine the OTU1 subcellular localization directly, the ER-based function suggests that the cytoplasmic OTU1, at least in part, associates with the ER."

reach
"In this respect, it also remains unknown whether the OTU1 population involved in the ERAD directly associates with the ER."
Bisphenol A affects OTUB1
2 |
Bisphenol A increases the amount of OTUB1. 2 / 2
2 |

No evidence text available

No evidence text available
YOD1 affects OTUB1
| 2
| 2

sparser
"Superimpositions of TYMV PRO/DUB with cellular OTU DUBs show that yeast OTU1 and human OTUD2 also interact simultaneously with the two hydrophobic patches of Ub (Fig. S3A) but engage mainly hydrophobic residues, together with one charged residue that structurally resembles Arg844 of TYMV PRO/DUB, i.e. Glu203 in yOTU1 or Arg245 in hOTUD2 (Fig. S3)."

sparser
"Superimpositions of TYMV PRO/DUB with cellular OTU DUBs show that yeast OTU1 and human OTUD2 also interact simultaneously with the two hydrophobic patches of Ub () but engage mainly hydrophobic residues, together with one charged residue that structurally resembles Arg 844 of TYMV PRO/DUB, i.e. Glu 203 in yOTU1 or Arg 245 in hOTUD2 ()."
Ubiquitin affects polyubiquitin
| 2
Ubiquitin binds OTUB1 and polyubiquitin. 2 / 2
| 2

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 enzyme stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."
Ubiquitin affects OtDUB
| 2
Ubiquitin binds OTUB1 and OtDUB. 2 / 2
| 2

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage. , the authors present mutations along one face of VR-1 that target the S1 site."

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage."
UBE2V2 affects OTUB1
1 | 1
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
1 |

No evidence text available
UBE2G2 affects OTUB1
1 | 1
1 | 1

sparser
"However, we saw no interaction between OTUB1 and UBE2G2 by ITC ( xref )."

No evidence text available
TRAF6 affects TRAF3
| 2
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
TGFBI affects OTUB1
| 1 1
| 1 1

sparser
"Half-life assays and ubiquitination test were performed to investigate the interaction between TGFBI and OTUB1."

reach
"Half-life assays and ubiquitination test were performed to investigate the interaction between TGFBI and OTUB1."
TFAP2A affects OTUB1
| 1 1
| 1 1

sparser
"Bioinformatics and luciferase assays revealed that TFAP2A binds the OTUB1 promoter region, thereby promoting its transcription."

reach
"Bioinformatics and luciferase assays revealed that TFAP2A binds the OTUB1 promoter region, thereby promoting its transcription."
SNRNP27 affects OTUB1
2 |
2 |

No evidence text available

No evidence text available
SMAD9 affects OTUB1
1 1 |
1 1 |

No evidence text available

No evidence text available
| 2

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
SMAD2/3/4 affects OTUB1
| 1
OTUB1 binds SMAD2/3/4. 1 / 2
| 1

reach
"The binding of endogenous OTUB1 to the active SMAD2/3/4 complex occurred within 30min of TGFbeta stimulation and persisted through 6h of continuous stimulation, closely mirroring the levels of SMAD2/3 tail phosphorylation (XREF_FIG)."
SETD7 affects OTUB1
| 1 1
SETD7 methylates OTUB1 on K122. 2 / 2
| 1 1

sparser
"SET7 methylates the deubiquitinase OTUB1 at Lys 122 to impair its binding to E2 enzyme UBC13 and relieve its suppressive role on ferroptosis."

reach
"SET7 methylates the deubiquitinase OTUB1 at Lys 122 to impair its binding to E2 enzyme UBC13 and relieve its suppressive role on ferroptosis."
RPTOR affects OTUB1
| 1 1
| 1 1

reach
"Using biochemical assays, we found that the tyrosine 26 residue (Y26) of OTUB1 played a critical role in the interaction between OTUB1 and Raptor."

sparser
"Using biochemical assays, we found that the tyrosine 26 residue (Y26) of OTUB1 played a critical role in the interaction between OTUB1 and Raptor."
RNF168 affects OTUB1
| 1
| 1

reach
"Instead, OTUB1 binds and inhibits the RNF168 associated E2s (UBC13 and UBE2N and E2s of the UBE2D and UBE2E families) through assembly of a pseudocleavage product in its catalytic site (Juang et al., [MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"
RAG2 affects OTUB1
| 2
RAG2 inhibits OTUB1. 2 / 2
| 2

reach
"UCHL1, UCHL3, USP2 and USP8 were found to be inhibited by AM146, RA-9, and RA-14, which did not inhibit Ataxin-3, A20, BAP1, Otubain 1 or USP7."

reach
"UCHL1, UCHL3, USP2 and USP8 were found to be inhibited by AM146, RA-9, and RA-14 which did not inhibit Ataxin-3, A20, BAP1, Otubain 1 or USP7 [XREF_BIBR]."
RACK1 affects OTUB1
2 |
2 |

No evidence text available

No evidence text available
RA-9 affects OTUB1
| 2
RA-9 inhibits OTUB1. 2 / 2
| 2

reach
"UCHL1, UCHL3, USP2 and USP8 were found to be inhibited by AM146, RA-9, and RA-14, which did not inhibit Ataxin-3, A20, BAP1, Otubain 1 or USP7."

reach
"UCHL1, UCHL3, USP2 and USP8 were found to be inhibited by AM146, RA-9, and RA-14 which did not inhibit Ataxin-3, A20, BAP1, Otubain 1 or USP7 [XREF_BIBR]."
PTPN11 affects OTUB1
| 1 1
PTPN11 dephosphorylates OTUB1. 2 / 2
| 1 1

sparser
"This study showed that cathepsin K inhibition activates SHP2, a tyrosine phosphatase, that dephosphorylates OTUB1 and destabilizes Raptor, whereas SHP2 deletion and pharmacological inhibition increase OTUB1-Y26 phosphorylation and Raptor expression."

reach
"This study showed that cathepsin K inhibition activates SHP2, a tyrosine phosphatase, that dephosphorylates OTUB1 and destabilizes Raptor, whereas SHP2 deletion and pharmacological inhibition increase OTUB1-Y26 phosphorylation and Raptor expression."
OtDUB affects Ubiquitin
| 2
Ubiquitin binds OTUB1 and OtDUB. 2 / 2
| 2

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage. , the authors present mutations along one face of VR-1 that target the S1 site."

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage."
OTUB2 affects TRAF6
| 2
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
| 2
OTUB1 translocates to the membrane. 2 / 2
| 2

sparser
"IL-15 mediates membrane recruitment of Otub1, which inhibits ubiquitin-dependent activation of AKT, a pivotal kinase for T cell activation and metabolism."

sparser
"IL-15 mediates membrane recruitment of Otub1, which inhibits ubiquitin-dependent activation of AKT, a kinase that is pivotal for T cell activation and metabolism."
OTUB1 affects ubiquitination degradation FOXM1 breast cancer
| 2
OTUB1 inhibits ubiquitination degradation FOXM1 breast cancer. 2 / 2
| 2

eidos
"Karunarathna et al. found that OTUB1 inhibited the ubiquitination and degradation of FOXM1 in breast cancer , and mediated epirubicin resistance ( Karunarathna et al ., 2016 ) ."

eidos
"OTUB1 represses the ubiquitination and degradation of FOXM1 in breast cancer [ 146 ] ."
OTUB1 affects ubiquitin transfer
| 2
OTUB1 inhibits ubiquitin transfer. 2 / 2
| 2

eidos
"Consequently , in addition to its DUB activity , OTUB1 also has the special function to bind different E2 ubiquitin conjugation enzymes , causing inhibition of ubiquitin transfer and regulation ubiquitination in a non-catalytically manner ."

eidos
"In addition to its deubiquitinating activity , OTUB1 has the unique ability to bind to a subset of E2 ubiquitin-conjugating enzymes and inhibit ubiquitin transfer in a manner that does not depend upon the catalytic activity of OTUB1 ( 17-19 ) ."
OTUB1 affects transcriptional HSF1
| 2
OTUB1 activates transcriptional HSF1. 2 / 2
| 2

eidos
"In addition , OTUB1 promoted the transcriptional activity of HSF1 ."

eidos
"Thus , OTUB1 enhances the transcriptional activity of HSF1 ."

reach
"The product of the OTUB1 gene is a member of the OTU superfamily of predicted cysteine proteases and inhibits cytokine gene transcription via its interaction with a ubiquitin protease and E3 ubiquitin ligase."

reach
"Mechanistically, OTUB1 inhibited IFN-gamma-induced Janus kinase (JAK)/signal transducer and activator of transcription (STAT) signaling by K48 deubiquitination and stabilization of the JAK2 inhibitor suppressor of cytokine signaling 1 (SOCS1)."
OTUB1 affects sub
| 2
OTUB1 inhibits sub. 2 / 2
| 2

reach
"The DUB function of USP8 is inactivated by Otub1 [XREF_BIBR]."

reach
"Within these processes OTUB1 reduces the ubiquitylation of target proteins in two distinct ways, either by using its catalytic DUB activity or in a non catalytic manner by inhibiting the E2 conjugating enzyme."
OTUB1 affects protein stability HSF1
| 2
OTUB1 activates protein stability HSF1. 2 / 2
| 2

eidos
"OTUB1 promoted the protein stability of HSF1 through deubiquitination and prolonged its half-life ."

eidos
"OTUB1 promotes the protein stability of HSF1 through deubiquitination ."
OTUB1 affects polyubiquitin
| 2
Ubiquitin binds OTUB1 and polyubiquitin. 2 / 2
| 2

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 enzyme stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."

reach
"We finally determined that OTUB1 promotes the proliferation and progression of PCa via deubiquitinating and stabling Cyclin E1."

reach
"Conclusions : Our findings reveal the critical role of OTUB1 in PCa, and OTUB1 promotes the proliferation and progression of PCa via deubiquitinating and stabilizing Cyclin E1."
OTUB1 affects p53S46P
| 2
OTUB1 activates p53S46P. 2 / 2
| 2

reach
"Together, these results suggest that Otub1 stabilizes MDMX and promotes p53S46P and mitochondria mediated apoptosis, providing an alternative mechanism of Otub1 's role in apoptosis."

reach
"Knockdown of MDMX reduced Otub1 induced p53S46P, which was shown to be critical for p53 's mitochondrial function and apoptotic activity."
OTUB1 affects p53-S46P
| 2
OTUB1 activates p53-S46P. 2 / 2
| 2

reach
"Knockdown of MDMX impaired both the p53-S46P and the induction of apoptosis induced by Otub1 expression as well as in response to UV irradiation, revealing an important role for MDMX in Otub1 induced and mitochondria mediated apoptosis."

reach
"Also, Otub1 expression promoted UV irradiation induced p53-S46P."
OTUB1 affects p53 ubiquitination
| 2
OTUB1 inhibits p53 ubiquitination. 2 / 2
| 2

eidos
"For example , USP7 regulates the stability of both p53 and Mdm2 and maintains p53 ubiquitination levels ; 120 USP2 mediates the stability of Mdm2 ; 121 USP10 modulates p53 localization and stability ; 122 OTUB1 abrogates p53 ubiquitination and activates p53.123 Interestingly , USP10 can stabilize both mutated and wild-type p53 , with a dual role in tumorigenesis ."

eidos
"For example , USP7 modulates the stability of both p53 and MDM2 , and maintains the level of p53 ubiquitylation ( 34 , 87 ) ; USP2 affects the stability of MDM2 ( 88 ) ; Otub1 inhibits p53 ubiquitination and activates p53 in cells ( 56 ) ; USP10 regulates the location and stability of p53 , and stabilize both mutated and wild-type p53 , thereby having a dual role in tumorigenesis ( 89 ) ."
OTUB1 affects oestrogen receptor alpha TRAF3 small
| 2
OTUB1 activates oestrogen receptor alpha TRAF3 small. 2 / 2
| 2

eidos
"Indeed , levels of oestrogen receptor alpha , TRAF3 / 6 and the small GTPase RhoA were suggested to be modulated by OTUB1 through direct deubiquitylation or indirect effects [ 39 A 41 ] ."
| PMC

eidos
"Indeed , levels of oestrogen receptor alpha , TRAF3 / 6 and the small GTPase RhoA were suggested to be modulated by OTUB1 through direct deubiquitylation or indirect effects [ 39 ] , [ 40 ] , [ 41 ] ."
| PMC
OTUB1 affects migration
| 2
OTUB1 activates migration. 2 / 2
| 2

eidos
"In line with the clinical results of OTUB1 in RCC , in vitro functional assays revealed that knockdown of OTUB1 inhibited cell proliferation , migration and invasion of RCC cells ."

eidos
"Knockdown of OTUB1 suppressed cell proliferation , migration and invasion of RCC ."
OTUB1 affects miR-542-3p
| 2
OTUB1 binds miR-542-3p. 2 / 2
| 2

reach
"To further study the regulatory association between OTUB1 and miR-542-3p, miR-542-3p mimic was used to elevate miR-542-3p expression in KYSE150 cells."

reach
"These data suggested that miR-542-3p may bind directly to the putative binding site in 3 ' UTR of OTUB1 to repress its expression."
| 2
| 2

reach
"One of the most interesting aspects of the study by Nakada et al. [55] is that depletion of OTUB1 rescues the 53BP1 localization and HR defects associated with loss of ATM activity."

reach
"Casein kinase 2 (CK2) phosphorylates the deubiquitylase OTUB1 at Ser16 to trigger its nuclear localization."
OTUB1 affects lethal hepatocyte necroptosis
| 2
OTUB1 inhibits lethal hepatocyte necroptosis. 2 / 2
| 2

eidos
"Correction : OTUB1 prevents lethal hepatocyte necroptosis through stabilization of c-IAP1 during murine liver inflammation ."

eidos
"OTUB1 prevents lethal hepatocyte necroptosis through stabilization of c-IAP1 during murine liver inflammation ."

reach
"The deubiquitinase OTUB1 augments NF-kappaB-dependent immune responses in dendritic cells in infection and inflammation by stabilizing UBC13."

reach
"Recent studies also show that OTUB1 augments NF-κB-dependent immune responses in dendritic cells in infection and inflammation by stabilizing UBC13 [76]."
OTUB1 affects function
| 2
OTUB1 inhibits function. 2 / 2
| 2

sparser
"Through binding to UBC13 which is the cognate E2 enzyme for RNF168, OTUB1 indirectly inhibits RNF168's ligase function ."

sparser
"The DUB function of USP8 is inactivated by Otub1 [ xref ]."
OTUB1 affects formation
| 2
OTUB1 inhibits formation. 2 / 2
| 2

sparser
"Instead, OTUB1 inhibits Lys63-linked chain formation through direct interactions with Ubc13 [ xref - xref ] ( xref )."

sparser
"OTUB1 inhibits both RNF168-stimulated formation of free polyubiquitin chains as well as the chains produced by the basal activity of Ubc13 itself."
OTUB1 affects epithelial-mesenchymal transition endometriosis cells
| 2
OTUB1 activates epithelial-mesenchymal transition endometriosis cells. 2 / 2
| 2

eidos
"Together , OTUB1 promotes epithelial-mesenchymal transition in endometriosis cells ."

eidos
"OTUB1 promotes epithelial-mesenchymal transition in endometriosis cells Ovarian tumor B1 promotes glycolysis in endometriosis cells Endometriosis lesions use aerobic glycolysis to produce energy ( Young et al ., 2016 ) ."

reach
"Although this study did not examine the OTU1 subcellular localization directly, the ER-based function suggests that the cytoplasmic OTU1, at least in part, associates with the ER."

reach
"In this respect, it also remains unknown whether the OTU1 population involved in the ERAD directly associates with the ER."
OTUB1 affects elaD
| 2
OTUB1 activates elaD. 2 / 2
| 2

reach
"Several studies have shown that OTUB1 modulates the ubiquitination levels of target proteins independent of its deubiquitinase activity."

reach
"As shown in XREF_FIG, the stability of SLC7A11 was effectively rescued by OTUB1 (C91A) but not by OTUB1 (D88A), suggesting that OTUB1 promotes SLC7A11 stabilization independent of its deubiquitinase activity."
OTUB1 affects chain
| 2
OTUB1 inhibits chain. 2 / 2
| 2

reach
"However, as previously mentioned, OTUB1 also plays an important role in HR regulated DSB repair, as it possesses the ability to bind conjugated Ubc13 ~ Ub and inhibit K63 chain synthesis [67]."

reach
"Accordingly, the overexpression of OTUB1 inhibits K63 chain accumulation and 53BP1 IRIF."
| 2

reach
"In glioma tissues, expression of OTUB1 is increased and the expression level is associated with the glioma grade; on the other hand, knockdown of OTUB1 suppresses the tumor cell migration."

reach
"In vitro wound healing and transwell assays showed that OTUB1 overexpression promoted tumor cell migration and invasion in gastric cancer cells."
OTUB1 affects c-Maf polyubiquitination
| 2
OTUB1 inhibits c-Maf polyubiquitination. 2 / 2
| 2

eidos
"As shown in Fig. 5b , Otub1 markedly reduced c-Maf polyubiquitination level but it was reversed by AVT , suggesting AVT inhibited Otub1 activity thus increasing the polyubiquitination level of c-Maf ."

eidos
"By suppressing Otub1 , Nam induces c-Maf polyubiquitination and subsequent degradation in proteasomes but does not alter its mRNA level ."
OTUB1 affects autoubiquitination UBE2E1
| 2
OTUB1 inhibits autoubiquitination UBE2E1. 2 / 2
| 2

eidos
"OTUB1 suppresses autoubiquitination of UBE2E1 ."

eidos
"In vitro , OTUB1 can non-catalytically inhibit the autoubiquitination activity of UBE2E1 , thus preventing it from degradation [ 149 ] ."
OTUB1 affects activity
| 2
OTUB1 inhibits activity. 2 / 2
| 2

sparser
"Interestingly, although OTUB1 also inhibits the auto-monoubiquitination and auto-polyubiquitination activity of UBE2E1 and UBE2E2, it is unable to suppress autoubiquitination by UBE2E3."

sparser
"In addition to UBE2N and the UBE2D isoforms, we find that OTUB1 inhibits polyubiquitination activity of all three UBE2E enzymes, UBE2E1, UBE2E2, and UBE2E3."
OTUB1 affects activation
| 2
OTUB1 inhibits activation. 2 / 2
| 2

sparser
"The overexpression of OTUB1 inhibited virus-induced activation of IRF3 and NF-κB, whereas knockdown of OTUB1 had the opposite effects."

sparser
"Overexpression of OTUB1 and OTUB2 inhibited virus-induced activation of IRF3 and NF-kappaB, transcription of the IFNB1 gene as well as cellular antiviral response, whereas knockdown of OTUB1 and OTUB2 had opposite effects."
OTUB1 affects YOD1
| 2
| 2

sparser
"Superimpositions of TYMV PRO/DUB with cellular OTU DUBs show that yeast OTU1 and human OTUD2 also interact simultaneously with the two hydrophobic patches of Ub (Fig. S3A) but engage mainly hydrophobic residues, together with one charged residue that structurally resembles Arg844 of TYMV PRO/DUB, i.e. Glu203 in yOTU1 or Arg245 in hOTUD2 (Fig. S3)."

sparser
"Superimpositions of TYMV PRO/DUB with cellular OTU DUBs show that yeast OTU1 and human OTUD2 also interact simultaneously with the two hydrophobic patches of Ub () but engage mainly hydrophobic residues, together with one charged residue that structurally resembles Arg 844 of TYMV PRO/DUB, i.e. Glu 203 in yOTU1 or Arg 245 in hOTUD2 ()."
OTUB1 affects Ubiquitin, and polyubiquitin
| 2
Ubiquitin binds OTUB1 and polyubiquitin. 2 / 2
| 2

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."

sparser
"Structural and biochemical studies of human and worm OTUB1 and UBCH5B show that the E2 enzyme stimulates binding of the Lys48 polyubiquitin substrate by stabilizing folding of the OTUB1 N-terminal ubiquitin-binding helix."
OTUB1 affects UBE2V2
1 | 1
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
1 |

No evidence text available
OTUB1 affects UBE2V1
| 2
| 2

sparser
"We unexpectedly find that OTUB1 binding to UBC13∼Ub is allosterically regulated by free ubiquitin, which binds to a second site in OTUB1 and increases its affinity for UBC13∼Ub, while at the same time disrupting interactions with UEV1A in a manner that depends on the OTUB1 N terminus."

sparser
"We unexpectedly find that OTUB1 binding to UBC13~Ub is allosterically regulated by free ubiquitin, which binds to a second site in OTUB1 and increases its affinity for UBC13~Ub, while at the same time disrupting interactions with UEV1a in a manner that depends upon the OTUB1 N-terminus."
OTUB1 affects UBE2G2
1 | 1
1 | 1

sparser
"However, we saw no interaction between OTUB1 and UBE2G2 by ITC ( xref )."

No evidence text available
OTUB1 affects TNFSF12
| 1 1
OTUB1 activates TNFSF12. 2 / 2
| 1 1

eidos
"Further , downregulation of ubiquitin thioesterase OTU domain ubiquitin aldehyde binding 1 ( OTUB1 ) enhances the degradation of cIAP1 and inhibits the TNF-related weak inducer of apoptosis ( TWEAK ) - induced MAPK and NF-kappaB pathway [ 33 ] ."

reach
"Downregulation of OTUB1 promotes TWEAK- and IAP antagonist stimulated caspase activation and cell death, and enhances c-IAP1 degradation."
OTUB1 affects TGFBI
| 1 1
| 1 1

sparser
"Half-life assays and ubiquitination test were performed to investigate the interaction between TGFBI and OTUB1."

reach
"Half-life assays and ubiquitination test were performed to investigate the interaction between TGFBI and OTUB1."
OTUB1 affects TFAP2A
| 1 1
| 1 1

sparser
"Bioinformatics and luciferase assays revealed that TFAP2A binds the OTUB1 promoter region, thereby promoting its transcription."

reach
"Bioinformatics and luciferase assays revealed that TFAP2A binds the OTUB1 promoter region, thereby promoting its transcription."
OTUB1 affects SNRNP27
2 |
2 |

No evidence text available

No evidence text available
OTUB1 affects SMAD9
1 1 |
1 1 |

No evidence text available

No evidence text available
OTUB1 affects SMAD2/3/4
| 1
OTUB1 binds SMAD2/3/4. 1 / 2
| 1

reach
"The binding of endogenous OTUB1 to the active SMAD2/3/4 complex occurred within 30min of TGFbeta stimulation and persisted through 6h of continuous stimulation, closely mirroring the levels of SMAD2/3 tail phosphorylation (XREF_FIG)."
OTUB1 affects RT4 cells
| 2
OTUB1 activates RT4 cells. 2 / 2
| 2

eidos
"Importantly , the OTUB1 knockdown led to a decrease in the E2F1 protein levels in RT4 and T24 cells ( Figure 5E ) , suggesting an interaction between these two proteins ."

eidos
"( E ) Western blotting images showing that the knockdown of OTUB1 leads to the decrease in the E2F1 protein levels in RT4 and T24 cells ."
OTUB1 affects RPTOR
| 1 1
| 1 1

reach
"Using biochemical assays, we found that the tyrosine 26 residue (Y26) of OTUB1 played a critical role in the interaction between OTUB1 and Raptor."

sparser
"Using biochemical assays, we found that the tyrosine 26 residue (Y26) of OTUB1 played a critical role in the interaction between OTUB1 and Raptor."
OTUB1 affects RNF126
1 | 1
1 | 1

No evidence text available

sparser
"We found that RNF126 also interacts with OTUB1, a deubiquitinating enzyme that negatively regulates K63-linked ubiquitination of TRAF3."
OTUB1 affects RCC
| 2
OTUB1 inhibits RCC. 2 / 2
| 2

reach
"Knockdown of OTUB1 inhibited cell viability and proliferation, as well as migration and invasion of RCC cells."

reach
"Moreover, the inhibition of RCC progression caused by OTUB1 knockdown was reversed by FOXM1 over-expression."
OTUB1 affects RACK1
2 |
2 |

No evidence text available

No evidence text available
OTUB1 affects R-SMAD SMAD4 complex
| 2
OTUB1 activates R-SMAD SMAD4 complex. 2 / 2
| 2

eidos
"OTUB1 maintains the stability of SMAD2 / 3 and also promotes the R-SMAD / SMAD4 complex formation by preventing ubiquitination on R-SMAD ."

eidos
"OTUB1 maintains the stability of SMAD2 / 3 by reversing the ubiquitination of SMAD2 and USP9X , and also promotes the R-SMAD / SMAD4 complex formation by preventing ubiquitination on R-SMAD ( 118 ) ."
| 2

eidos
"In breast cancer , OTUB1 promotes the protein stability of MYC through deubiquitination and mediates HK2 expression to increase aerobic glycolysis ( Han et al ., 2022 ) ."

eidos
"Moreover , OTUB1 mediated MYC protein stability is also confirmed in OTUB1-knockout mice ."
OTUB1 affects PTEN
| 1
| 1

trips
"PTEN recruits the deubiquitinase OTUB1 to mediate RPA1 deubiquitination."
OTUB1 affects PD-L1 abundance
| 2
OTUB1 activates PD-L1 abundance. 2 / 2
| 2

eidos
"Furthermore , PKP3 engages with the RNA-binding protein FXR1 to stabilize OTUB1 mRNA , and OTUB1 elevates PD-L1 abundance by facilitating its deubiquitination ."

eidos
"Functionally , depletion of OTUB1 markedly decreases PD-L1 abundance , reduces PD-1 protein binding to the tumor cell surface , and causes increased tumor cell sensitivity to human peripheral blood mononuclear cells ( PBMCs ) - mediated cytotoxicity ."
OTUB1 affects OtDUB, and Ubiquitin
| 2
Ubiquitin binds OTUB1 and OtDUB. 2 / 2
| 2

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage. , the authors present mutations along one face of VR-1 that target the S1 site."

sparser
"In Fig. S2 , please compare OtDUB-Ub with OTUB1-Ub, where two Ub molecules are aligned so as to form a K48 linkage."
OTUB1 affects OTUB2, TRAF3, and TRAF6
| 2
| 2

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains.[ 172 ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."

sparser
"Coimmunoprecipitation analyses indicate that OTUB1 and OTUB2 associate with TRAF3 and TRAF6, negatively regulating antiviral responses by deubiquitinating their respective K63‐linked polyubiquitin chains. [ xref ] Because various components are involved in virus‐induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG‐I‐, MDA5‐, and MAVS‐mediated but not TBK1‐ and IRF3‐mediated signaling."
OTUB1 affects MYC
| 2
OTUB1 activates MYC. 2 / 2
| 2

reach
"Moreover, OTUB1 mediated MYC protein stability is also confirmed in OTUB1-knockout mice."

reach
"Therefore, OTUB1 promotes breast tumorigenesis in vivo and in vitro via blocking MYC protein degradation."
OTUB1 affects MTOR
| 2
OTUB1 inhibits MTOR. 2 / 2
| 2

reach
"On the molecular level, Otub1 deletion enhanced mTOR signaling in embryonic and adult lung tissues."

reach
"Blocking the mTOR by using CTLA-4-Ig, anti-IL-2 or rapamycin prevented Otub-1 protein expression and maintained GRAIL expression, which inhibited T cell proliferation [XREF_BIBR]."
OTUB1 affects KRAS
| 2
OTUB1 activates KRAS. 2 / 2
| 2

reach
"Whereas down-regulation or loss of function of RABEX5 in human cancers has not been reported, we found that OTUB1 expression is commonly up-regulated in a substantial subset of NSCLCs harboring wt KRAS."

reach
"Taken together, these results suggest that an increase in OTUB1 expression accelerated tumorigenic transformation of wt KRAS NSCLCs."
OTUB1 affects Infections
| 2
| 2

reach
"The deubiquitinase OTUB1 augments NF-kappaB-dependent immune responses in dendritic cells in infection and inflammation by stabilizing UBC13."

reach
"Recent studies also show that OTUB1 augments NF-κB-dependent immune responses in dendritic cells in infection and inflammation by stabilizing UBC13 [76]."
OTUB1 affects IRF7
| 1 1
| 1 1

reach
"Next, the expression levels of OTUB1, interferon regulatory factor 7 (IRF7), and NADPH oxidase 4 (NOX4) levels were determined by real-time quantitative polymerase chain reaction and western blot assay, the binding of OTUB1 to IRF7 was analysed by co-immunoprecipitation, and the ubiquitination level of IRF7 and the enrichment and binding of IRF7 and the NOX4 promoter were measured by chromatin immunoprecipitation and dual-luciferase assays."

sparser
"Next, the expression levels of OTUB1, interferon regulatory factor 7 (IRF7), and NADPH oxidase 4 (NOX4) levels were determined by real-time quantitative polymerase chain reaction and western blot assay, the binding of OTUB1 to IRF7 was analysed by co-immunoprecipitation, and the ubiquitination level of IRF7 and the enrichment and binding of IRF7 and the NOX4 promoter were measured by chromatin immunoprecipitation and dual-luciferase assays."
OTUB1 affects IL2
| 2
OTUB1 inhibits IL2.
| 1
OTUB1 inhibits IL2. 1 / 1
| 1

reach
"Overexpression of otubain-1 in CD4 + T cells results in small GRAIL expression and large production of IL-2, whereas otubain-1 ARF-1 overexpression in T cells stabilized GRAIL expression and reduced IL-2 production."
OTUB1 increases the amount of IL2.
| 1
OTUB1 increases the amount of IL2. 1 / 1
| 1

reach
"In lethally irradiated mice reconstituted with bone marrow cells from T cell receptor-transgenic mice retrovirally transduced to express the genes encoding these proteases, otubain 1 expressing cells contained negligible amounts of endogenous GRAIL, proliferated well and produced large amounts of interleukin 2 after antigenic stimulation."
OTUB1 affects IH
| 2
OTUB1 activates IH. 2 / 2
| 2

reach
"The knockdown of OTUB1 significantly suppressed IH progression in vivo."

reach
"The expression of OTUB1 was obviously increased in proliferating IH as compared to the involuting and involuted IH tissues."
| 2

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
OTUB1 affects HIF1
| 2
OTUB1 activates HIF1. 2 / 2
| 2

reach
"These findings define a novel regulation of HIF-1α under hypoxia and demonstrate that OTUB1-mediated HIF-1α stabilization positively regulates HIF-1α transcriptional activity and benefits cellular hypoxia adaptation."

reach
"OTUB1 binds to HIF-1α and depletion of OTUB1 reduces endogenous HIF-1α protein under hypoxia."
OTUB1 affects GST
| 2
| 2

sparser
"The K d for binding of UBE2N to OTUB1 was 8.1 μM, which is consistent with previous studies that measured a K d of 7.04 μM using fluorescence polarization xref and K d of 8.9 μM measured by surface plasmon resonance using a GST-OTUB1 fusion xref ."

sparser
"In the in vitro ubiquitination assay, individual Flag-tagged substrates (MSH2, FOXM1, and DEPTOR) were incubated with GST-OTUB1 (WT, C91A, or D88A) and HA-Ub in a ubiquitination system containing rabbit reticulocyte lysate (RRL), as described previously ( xref ), and ubiquitinated substrates were visualized by western blotting using a Ub antibody."
OTUB1 affects EN523
| 2
OTUB1 binds EN523. 2 / 2
| 2

reach
"We next used NMR analysis to further characterize EN523 binding to OTUB1."

reach
"We next performed liquid chromatography-tandem mass spectrometry analysis (LC-MS/MS) of tryptic peptides from EN523 bound to OTUB1 and showed that EN523 selectively targets C23, with no detectable modification of the catalytic C91 (Figure 2d)."
| 1 1
| 1 1

reach
"OTUB1 suppresses the E3 ubiquitin-ligase by co-opting K48 ubiquitin recognition to regulate DNA damage [76,129,130,131,132]."

eidos
"OTUB1 suppresses the E3 ubiquitin-ligase by co-opting K48 ubiquitin recognition to regulate DNA damage [ 76,129,130,131,132 ] ."
OTUB1 affects E2~Ub
| 2
OTUB1 binds E2~Ub. 2 / 2
| 2

sparser
"A second possible avenue for regulation centres on the role of the distally bound free Ub in the formation of the OTUB1-E2~Ub complex."

sparser
"In the case of the OTUB1-E2~Ub interaction, we have an unusual example of product inhibition mimicry; the assembly of the Ub~E2-OTUB1-Ub complex completes the formation of a pseudo DUB cleavage product that inhibits a second enzyme, in this case the E2."
OTUB1 affects E2F1 protein
| 2
OTUB1 activates E2F1 protein. 2 / 2
| 2

eidos
"( E ) Western blotting images showing that the knockdown of OTUB1 leads to the decrease in the E2F1 protein levels in RT4 and T24 cells ."

eidos
"Importantly , the OTUB1 knockdown led to a decrease in the E2F1 protein levels in RT4 and T24 cells ( Figure 5E ) , suggesting an interaction between these two proteins ."
| 2

reach
"As OTUB1 was described to modulate DC and T cell functions [10–13] we hypothesized that its loss may provoke perturbances in maternal immune responses and thereby interfere with fetal tolerance induction."

reach
"In contrast, impaired OTUB1-deficient DC activation and cytokine production by OTUB1-deficient DCs protected mice from lipopolysaccharide-induced immunopathology."
OTUB1 affects DNA Damage
| 1
| 1

reach
"Non canonical inhibition of DNA damage dependent ubiquitination by OTUB1."
OTUB1 affects DA2
| 2
OTUB1 decreases the amount of DA2. 2 / 2
| 2

reach
"Consistent with the effect of the OTU1 loss-of-function mutations on the DA1 and DA2 transcription (see Figure 6), their effect on DA2 monoubiquitylation was more pronounced than that on DA1 monoubiquitylation."

reach
"These data suggest that OTU1 negatively regulates expression of DA1 and DA2 and that its loss of function results in transcriptional activation of these target genes.DA1, a ubiquitin-binding protein, and DA2, a RING-type E3 ubiquitin ligase, are known to interact with each other and negatively regulate the seed and organ size in Arabidopsis (Du et al., 2014, Li and Li, 2014, Li and Li, 2016, Xia et al., 2013)."
OTUB1 affects CYP1A1
2 |
2 |

No evidence text available

No evidence text available
OTUB1 affects CFP
| 2
| 2

sparser
"We cannot rule out that at least some of the cytoplasmic signal of CFP-OTU1 derives from degradation of this fusion protein; however, usually, degradation of GFP-tagged proteins results in the loss of fluorescence, representing the rationale for degradation assays that utilize GFP fusions of the proteins of interest ( xref , xref , xref )."

sparser
"As positive control for nuclear localization, CFP-OTU1 was coexpressed with mRFP fused to a bipartite-type nuclear localization signal (NLS) derived from the Agrobacterium VirD2 protein ( xref ). xref B shows that, similarly to free mRFP, CFP-OTU1 accumulated in the cytoplasm—displaying transvacuolar strands (green arrowhead) and variations in cytosol thickness at the cell cortex ( xref , xref )—and in the nucleus (white arrowhead), colocalizing with mRFP-VirD2 NLS."
OTUB1 affects CDH1
| 2
OTUB1 increases the amount of CDH1. 2 / 2
| 2

reach
"Knockdown of OTUB1 increases epithelial-mesenchymal transition related protein E-cadherin expression, but decreases simultaneously the expression of vimentin and snail."

reach
"Together, these results suggest that alterations in E-cadherin expression driven by OTUB1 may be regulated by ZEB1."
Nam affects OTUB1
| 2
Nam inhibits OTUB1. 2 / 2
| 2

eidos
"In the present study , we reported that nanchangmycin ( Nam ) , an antibiotic for the treatment of Gram-negative bacteria19 and Zika virus infection20 , could inhibit the Otub1 / c-Maf axis , therefore promoting c-Maf degradation and inducing MM cell apoptosis at both in vitro and in vivo ."

eidos
"In the present study , we found that Nam can suppress the Otub1 / c-Maf axis ."
NR4A1 affects OTUB1
| 1 1
| 1 1

sparser
"We found that OTUB1 interacted with Nur77 to deubiquitinate it, thereby stabilizing Nur77 in an Asp88-dependent manner."

reach
"We found that OTUB1 interacted with Nur77 to deubiquitinate it, thereby stabilizing Nur77 in an Asp88 dependent manner."
MAZ affects OTUB1
2 |
MAZ decreases the amount of OTUB1. 2 / 2
2 |

No evidence text available

No evidence text available
IRF7 affects OTUB1
| 1 1
| 1 1

reach
"Next, the expression levels of OTUB1, interferon regulatory factor 7 (IRF7), and NADPH oxidase 4 (NOX4) levels were determined by real-time quantitative polymerase chain reaction and western blot assay, the binding of OTUB1 to IRF7 was analysed by co-immunoprecipitation, and the ubiquitination level of IRF7 and the enrichment and binding of IRF7 and the NOX4 promoter were measured by chromatin immunoprecipitation and dual-luciferase assays."

sparser
"Next, the expression levels of OTUB1, interferon regulatory factor 7 (IRF7), and NADPH oxidase 4 (NOX4) levels were determined by real-time quantitative polymerase chain reaction and western blot assay, the binding of OTUB1 to IRF7 was analysed by co-immunoprecipitation, and the ubiquitination level of IRF7 and the enrichment and binding of IRF7 and the NOX4 promoter were measured by chromatin immunoprecipitation and dual-luciferase assays."
| 2

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
GST affects OTUB1
| 2
| 2

sparser
"The K d for binding of UBE2N to OTUB1 was 8.1 μM, which is consistent with previous studies that measured a K d of 7.04 μM using fluorescence polarization xref and K d of 8.9 μM measured by surface plasmon resonance using a GST-OTUB1 fusion xref ."

sparser
"In the in vitro ubiquitination assay, individual Flag-tagged substrates (MSH2, FOXM1, and DEPTOR) were incubated with GST-OTUB1 (WT, C91A, or D88A) and HA-Ub in a ubiquitination system containing rabbit reticulocyte lysate (RRL), as described previously ( xref ), and ubiquitinated substrates were visualized by western blotting using a Ub antibody."
FlaG affects SMAD3
| 2

sparser
"HA-OTUB1 H265A and HA-OTUB1 K71R mutants also interacted with FLAG-SMAD3 ( xref )."

sparser
"Full-length HA-OTUB1, as well as HA-OTUB1 ΔN interacted with FLAG-SMAD3, whereas HA-OTUB1 C91S and HA-OTUB1 D/C/H mutants did not ( xref )."
EYA1 affects OTUB1
| 1 1
| 1 1

sparser
"Mechanistically, OTUB1 could interact with EYA1 directly and deubiquitinate EYA1 to stabilize it."

reach
"Mechanistically, OTUB1 could interact with EYA1 directly and deubiquitinate EYA1 to stabilize it."
E4B affects OTUB1
| 2
E4B ubiquitinates OTUB1.
| 1
E4B ubiquitinates OTUB1. 1 / 1
| 1

reach
"We verified that kinase MAPK3, methyltransferase PRMT1, protein phosphatases PPP3CA and PGAM5, and deubiquitinase OTUB1 were ubiquitinated by E4B in vitro and in HEK293 cells."
E4B inhibits OTUB1.
| 1
E4B inhibits OTUB1. 1 / 1
| 1

reach
"We found that overexpression of E4B accelerated the degradation of PRMT1, MAPK3, PPP3CA, and OTUB1 in HEK293 cells."
E2~Ub affects OTUB1
| 2
OTUB1 binds E2~Ub. 2 / 2
| 2

sparser
"A second possible avenue for regulation centres on the role of the distally bound free Ub in the formation of the OTUB1-E2~Ub complex."

sparser
"In the case of the OTUB1-E2~Ub interaction, we have an unusual example of product inhibition mimicry; the assembly of the Ub~E2-OTUB1-Ub complex completes the formation of a pseudo DUB cleavage product that inhibits a second enzyme, in this case the E2."
CYP1A1 affects OTUB1
2 |
2 |

No evidence text available

No evidence text available
CSNK2A1 affects OTUB1
1 | 1
CSNK2A1 phosphorylates OTUB1 on S16. 2 / 2
1 | 1

No evidence text available

sparser
"γ32 P radioactivity was released after the sixth cycle of Edman degradation, suggesting that CK2α phosphorylates OTUB1 only at Ser 16 ( xref )."
CRC affects OTUB1
| 2
| 2

sparser
"Because high OTUB1 expression in primary CRC tissues is associated with lymph node status and distant metastasis, we analyzed whether OTUB1 was highly expressed in lymph node or metastatic tumor tissues."

sparser
"These results indicated that OTUB1 expression may be associated with CRC metastasis."
CFP affects OTUB1
| 2
| 2

sparser
"We cannot rule out that at least some of the cytoplasmic signal of CFP-OTU1 derives from degradation of this fusion protein; however, usually, degradation of GFP-tagged proteins results in the loss of fluorescence, representing the rationale for degradation assays that utilize GFP fusions of the proteins of interest ( xref , xref , xref )."

sparser
"As positive control for nuclear localization, CFP-OTU1 was coexpressed with mRFP fused to a bipartite-type nuclear localization signal (NLS) derived from the Agrobacterium VirD2 protein ( xref ). xref B shows that, similarly to free mRFP, CFP-OTU1 accumulated in the cytoplasm—displaying transvacuolar strands (green arrowhead) and variations in cytosol thickness at the cell cortex ( xref , xref )—and in the nucleus (white arrowhead), colocalizing with mRFP-VirD2 NLS."
CD28 affects OTUB1
| 2
CD28 increases the amount of OTUB1. 2 / 2
| 2

reach
"The inhibition of CD28 costimulation by CTLA4-Ig treatment blocked Otub1 expression and sustained GRAIL expression, and this effect could be reversed by the addition of agonist anti-CD28 Ab (XREF_FIG)."

reach
"For this, CD28 co-stimulation via IL-2/mTOR-dependent pathways induces the expression of the deubiquitinase Otubain-1 (OTUB1) [177], which destabilize and promote GRAIL degradation [178] (Figure 2)."
| PMC
AM146 affects OTUB1
| 2
AM146 inhibits OTUB1. 2 / 2
| 2

reach
"UCHL1, UCHL3, USP2 and USP8 were found to be inhibited by AM146, RA-9, and RA-14, which did not inhibit Ataxin-3, A20, BAP1, Otubain 1 or USP7."

reach
"UCHL1, UCHL3, USP2 and USP8 were found to be inhibited by AM146, RA-9, and RA-14 which did not inhibit Ataxin-3, A20, BAP1, Otubain 1 or USP7 [XREF_BIBR]."

sparser
"MYH9, ACTN1, CANX, GPI, TPM1, EPRS, ITGB1, ANXA3, CNN2, MAPK1, PSME2, CTPS1, OTUB1, PSMB6, HMGB1, RPS19, SEC61A1, CTNNB1, GLO1, RPL22, PSMA2, SYNCRIP, PRDX3, SAMHD1, TCAF2, MAPK3, RPS24, and MYO1E, which are associated with immunity, were expressed at higher levels by the SCID mAdMSCs compared with the C57BL/6 mAdMSCs."

sparser
"However, MYH9, ACTN1, CANX, GPI, TPM1, EPRS, ITGB1, ANXA3, CNN2, MAPK1, PSME2, CTPS1, OTUB1, PSMB6, HMGB1, RPS19, SEC61A1, CTNNB1, GLO1, RPL22, PSMA2, SYNCRIP, PRDX3, SAMHD1, TCAF2, MAPK3, RPS24, and MYO1E, which are associated with immunity, were more highly expressed by SCID mAdMSCs compared with those of C57BL/6 mAdMSCs."
Targeting C57BL affects OTUB1
| 1
Targeting C57BL activates OTUB1. 1 / 1
| 1

eidos
"To gain insight into the function of OTUB1 in vivo , we generated Otub1 + / - mice by gene targeting in C57BL / 6 embryonic stem cells ( Fig. S1 , A and B ) ."

reach
"Sodium citrate, at high concentrations, activated OTU-1, UCH-L3 and PLpro, and this could be due to an ionic effect or a Hofmeister effect."
P53-S46P affects OTUB1
| 1
P53-S46P activates OTUB1. 1 / 1
| 1

reach
"Knockdown of MDMX impaired both the p53-S46P and the induction of apoptosis induced by Otub1 expression as well as in response to UV irradiation, revealing an important role for MDMX in Otub1 induced and mitochondria mediated apoptosis."
1 |
Hydroperoxide phosphorylates OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-708-3p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-6752-5p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-6732-5p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-6722-3p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-663a decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-4706 decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-4504 decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-3185 decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-3180-3p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-3179 decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-3154 decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-28-5p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-15a-5p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
1 |
Hsa-miR-143-5p decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
| 1
| 1

reach
"OTUB1 was found to be overexpressed in viral infected cells treated with cyclosporine A, showing its possible role in causing the inhibitory effect [XREF_BIBR, XREF_BIBR]."
1 |
Cobalt dichloride decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
Cc4 affects Ubiquitin
| 1
| 1

sparser
"It is conceivable that Ub/UbV-CC4 binding to the OTU domain might simply lock the polymerase in an inactive state, preventing RNA synthesis."
Casein affects OTUB1
| 1
Casein phosphorylates OTUB1 at position 16. 1 / 1
| 1

reach
"We found that casein kinase 2 (CK2) phosphorylated OTUB1 at Ser (16) to promote its nuclear accumulation in cells."
ZNF746 affects OTUB1
1 |
1 |

No evidence text available
VPS45 affects UBE2N
| 1
| 1

reach
"27,28 OTUB1 interacts with Ubc13 through the H1 helix and S3-S4 and 3 10 -1-H2 loops, which are the same regions involved in OspI binding."
Ubvs affects OTUB1
| 1
Ubvs activates OTUB1. 1 / 1
| 1

reach
"Thus, as observed in the case of the Ubvs targeting USP2, USP21, and OTUB1, these Ubvs have acquired substitutions that strengthen key interactions with targets while preserving the Ub.wt binding mode."
Ubiquitin affects cc4
| 1
| 1

sparser
"It is conceivable that Ub/UbV-CC4 binding to the OTU domain might simply lock the polymerase in an inactive state, preventing RNA synthesis."
| 1

sparser
"The free Ub moiety interacts with OTUB1 at its distal Ub-binding site in a manner nearly identical to yeast Otu1 covalently bound to Ub-Br3 ( xref ) ( xref ) burying a total surface area of 2344 Å 2 ."
UbVS affects OTUB1
| 1
OTUB1 binds UbVS. 1 / 1
| 1

reach
"That this is indeed the case is evident from our observation that UbVS binds to hOtu1 at a site distinct from the catalytic site occupied by Ubal (XREF_FIG)."
Ub moiety affects OTUB1
| 1
OTUB1 binds Ub moiety. 1 / 1
| 1

reach
"The free Ub moiety interacts with OTUB1 at its distal Ub binding site in a manner nearly identical to yeast Otu1 covalently bound to Ub-Br3 (XREF_SUPPLEMENTARY) burying a total surface area of 2344 A 2."
USP9X affects USP7
| 1
| 1

sparser
"Characterization of ALKBH3-interacting proteins show that USP7 and USP9x associate with another DUB OTU deubiquitinase 4 (OTUD4) to form a protein complex that deubiquitinates ALKBH3 [ xref ]."
USP5 affects OTUB1
| 1
USP5 binds OTUB1 and AR. 1 / 1
| 1

sparser
"The results suggest that AR did not bind to USP5 and OTUB1, but bound to USP14, which is consistent with the previous report (Fig. xref ) [ xref , xref ]."
USP47 affects OTUB1
1 |
1 |

No evidence text available
USP21 affects OTUB1
1 |
1 |

No evidence text available
UEV1A affects UBE2V2
| 1
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
UBTD1 affects OTUB1
1 |
1 |

No evidence text available
UBE2V2 affects UEV1A
| 1
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
UBE2N affects VPS45
| 1
| 1

reach
"27,28 OTUB1 interacts with Ubc13 through the H1 helix and S3-S4 and 3 10 -1-H2 loops, which are the same regions involved in OspI binding."
UBE2N affects UEV1A
| 1
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
UBE2E enzymes affects OTUB1
| 1
OTUB1 binds UBE2E enzymes. 1 / 1
| 1

reach
"OTUB1 binding to UBE2E enzymes is therefore more likely to be important for non catalytic inhibition of these E2 enzymes, as has been reported for UBE2E1 35."
TRAF6 affects Pellino
| 1
| 1

sparser
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig.  xref )."
TOMM22 affects OTUB1
1 |
1 |

No evidence text available
| 1

sparser
"The free Ub moiety interacts with OTUB1 at its distal Ub-binding site in a manner nearly identical to yeast Otu1 covalently bound to Ub-Br3 ( xref ) ( xref ) burying a total surface area of 2344 Å 2 ."
TGFB affects SMAD2_3
| 1
| 1

sparser
"The TGFβ-induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice ( xref )."
SP1 affects OTUB1
1 |
SP1 decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
SOX5 affects OTUB1
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SOX5 decreases the amount of OTUB1. 1 / 1
1 |

No evidence text available
SMAD2_3 affects TGFB
| 1
| 1

sparser
"The TGFβ-induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice ( xref )."
SLIT3 affects OTUB1
1 |
1 |

No evidence text available
SLC25A11 affects OTUB1
1 |

No evidence text available
SLC16A1 affects OTUB1
1 |
1 |

No evidence text available
SKF 38393 affects OTUB1
1 |
SKF 38393 increases the amount of OTUB1. 1 / 1
1 |

No evidence text available
SIRT3 affects OTUB1
| 1
| 1

reach
"47 Treating ccRCC cells with MG132 to inhibit SIRT3 ubiquitination, we found that knocking down NUDT1 can significantly reduce the expression of OTUB1 that binds to SIRT3, which indicates that OTUB1 plays an important role in the process of NUDT1 affecting SIRT3 ubiquitination (Figure 4H)."
| PMC
SEC61B affects OTUB1
1 |
1 |

No evidence text available
RP9 affects OTUB1
1 |
1 |

No evidence text available
RNF31 affects OTUB1
| 1
| 1

sparser
"In addition to its catalytic function, the involvement of OTULIN in NFκB signalling is dependent on its ability to bind directly to HOIP through a conserved motif N-terminal to the catalytic OTU domain ( xref ; xref )"
RNF2 affects OTUB1
1 |
1 |

No evidence text available
RCA affects OTUB1
| 1
RCA inhibits OTUB1. 1 / 1
| 1

sparser
"UCHL1, UCHL3, USP2 and USP8 were found to be inhibited by AM146, RA-9, and RA-14, which did not inhibit Ataxin-3, A20, BAP1, Otubain 1 or USP7 ( xref )."
RAS affects NRAS
| 1
RAS binds OTUB1 and NRAS. 1 / 1
| 1

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
QPCTL affects OTUB1
1 |
1 |

No evidence text available
PolyUb chains affects OTUB1
| 1
OTUB1 binds PolyUb chains. 1 / 1
| 1

reach
"PolyUb chains of different linkage types bind to hOtu1."
Pellino affects TRAF6
| 1
| 1

sparser
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig.  xref )."
PRDX1 affects OTUB1
1 |
1 |

No evidence text available
PIN1 affects OTUB1
1 |
1 |

No evidence text available
PCNA affects OTUB1
1 |
1 |

No evidence text available
OTUB1 affects xenograft tumor growth
| 1
OTUB1 activates xenograft tumor growth. 1 / 1
| 1

eidos
"These results suggested that OTUB1 knockdown inhibited xenograft tumor growth via regulation of FOXM1-mediated ECT-Rho signaling ."
| 1
| 1

reach
"In the wound healing assay, we found that the overexpression of OTUB1‐isoform2 accelerated the wound healing rates in both SKOV3 cells (P < .01, Figure 4A) and A2780 (P < .01, Figure 4B) compared with the mock and the pcDNA3.1 control."
OTUB1 affects vivo.4 DISCUSSION
| 1
OTUB1 activates vivo.4 DISCUSSION. 1 / 1
| 1

reach
"These data suggest that OTUB1‐isoform2 promotes ovarian tumour growth and metastasis in vivo.4 DISCUSSION."
OTUB1 affects ubiquitination ovarian cancer breast cancer
| 1
OTUB1 inhibits ubiquitination ovarian cancer breast cancer. 1 / 1
| 1

eidos
"OTUB1 was reported to inhibit the ubiquitination of FOXM1 in ovarian cancer [ 27 ] and breast cancer [ 26 ] ."
OTUB1 affects ubiquitination of FOXM1 in RCC
| 1
OTUB1 inhibits ubiquitination of FOXM1 in RCC. 1 / 1
| 1

eidos
"In line with these studies , our results showed that knockdown of OTUB1 promoted the ubiquitination of FOXM1 in RCC , and the reduction of FOXM1 by protein synthesis inhibitor ( CHX ) treatment was accelerated via siOTUB1 ."
OTUB1 affects ubiquitination E2F1 induced overexpression TMPO-AS1 cells
| 1
OTUB1 activates ubiquitination E2F1 induced overexpression TMPO-AS1 cells. 1 / 1
| 1

eidos
"Furthermore , the OTUB1 knockdown significantly reversed the decreased ubiquitination of E2F1 induced by the overexpression of TMPO-AS1 in RT4 and T24 cells ( Figure 5H ) ."
OTUB1 affects ubiquitin response RNF8 RNF168
| 1
OTUB1 inhibits ubiquitin response RNF8 RNF168. 1 / 1
| 1

eidos
"In contrast to BRCC36 , USP16 and USP3 , OTUB1 inhibits the DSB ubiquitin response downstream of RNF8 , at the level of RNF168 ."
OTUB1 affects tumor migration
| 1
OTUB1 activates tumor migration. 1 / 1
| 1

eidos
"OTUB1 has complex functions in various cancers , promotes tumor migration , and is a tumor suppressor that induces cell apoptosis and cell growth by regulating the DNA damage response ( Sun et al ., 2012 ; Herhaus et al ., 2013 ; Kato et al ., 2014 ) ."
OTUB1 affects subsequent
| 1
OTUB1 activates subsequent. 1 / 1
| 1

eidos
"Depleting OTUB1 or impairing its noncanonical function that inhibits E2 activity enhances MSH2 ubiquitination ( Fig. 3 ) and subsequent degradation via the proteasome ( Fig. 2 ) ."
OTUB1 affects stability cIAP1
| 1
OTUB1 activates stability cIAP1. 1 / 1
| 1

eidos
"Since OTUB1 also modulates the stability of cIAP1 , it is a likely candidate that would explain the observed phenotype ."
OTUB1 affects snail
| 1
OTUB1 decreases the amount of snail. 1 / 1
| 1

reach
"Knockdown of OTUB1 increases epithelial-mesenchymal transition related protein E-cadherin expression, but decreases simultaneously the expression of vimentin and snail."
OTUB1 affects signaling
| 1
OTUB1 activates signaling. 1 / 1
| 1

sparser
"OTUB1 activates TGF-β signaling via activating (phospho-) SMAD2/3."
OTUB1 affects ptc
| 1
OTUB1 activates ptc. 1 / 1
| 1

reach
"Through in vitro and in vivo experiments, knockdown of OTUB1 suppressed PTC cells growth whereas OTUB1 overexpression enhanced the proliferation ability of PTC cells."
OTUB1 affects production
| 1
OTUB1 inhibits production. 1 / 1
| 1

sparser
"Functionally, OTUB1 inhibited TNFα-induced IL-6 production by promoting Nur77 protein stability."
OTUB1 affects process
| 1
OTUB1 inhibits process. 1 / 1
| 1

eidos
"OTUB1 inhibits the process via deubiquitination of UBE2N ."
OTUB1 affects mutator MMR proteins MutSalpha play damage signaling
| 1
OTUB1 inhibits mutator MMR proteins MutSalpha play damage signaling. 1 / 1
| 1

eidos
"Depletion of OTUB1 induces a mutator phenotype MMR proteins , particularly MutSalpha , also play important roles in DNA damage signaling , which leads to apoptotic cell death ( 2 ) ."
OTUB1 affects metastasis esophageal squamous cell carcinoma
| 1
OTUB1 activates metastasis esophageal squamous cell carcinoma. 1 / 1
| 1

eidos
"Based on these findings of previous studies , OTUB1 promotes the metastasis of esophageal squamous cell carcinoma by modulating snail stability ( Zhou et al ., 2018 ) , while different expression of OTUB1 affects the migration and progression of colorectal cancer through the regulation of ERRalpha or mir-542-3p ( Yuan et al ., 2017 ; Zhou et al ., 2019 ) ."
OTUB1 affects isopeptidase
| 1
OTUB1 inhibits isopeptidase. 1 / 1
| 1

reach
"We recently reported that OTUB1, a deubiquitylase, inhibits the DNA damage response independently of its isopeptidase activity."
OTUB1 affects invasion cells
| 1
OTUB1 activates invasion cells. 1 / 1
| 1

eidos
"In line with the clinical results of OTUB1 in RCC , in vitro functional assays revealed that knockdown of OTUB1 inhibited cell proliferation , migration and invasion of RCC cells ."
OTUB1 affects hypoxia-induced glycolytic reprogramming cellular metabolic adaptation
| 1
OTUB1 activates hypoxia-induced glycolytic reprogramming cellular metabolic adaptation. 1 / 1
| 1

eidos
"Furthermore , OTUB1 promotes hypoxia-induced glycolytic reprogramming for cellular metabolic adaptation ."
OTUB1 affects glucose
| 1
OTUB1 activates glucose. 1 / 1
| 1

reach
"The results showed that overexpression of OTUB1 increased glucose consumption and lactate production in 11Z and HESC cells (Figures 6A and 6B)."
OTUB1 affects drug sensitivity
| 1
OTUB1 activates drug sensitivity. 1 / 1
| 1

eidos
"The results showed that restoring OTUB1 expression to SW620-OTUB1-KD also restored drug sensitivity ( Fig. 4B ) , which confirms that OTUB1 is involved in DNA damage-induced response , likely by stabilizing cellular MSH2 ."
OTUB1 affects deubiquitination stabilization replication A protein RPA1
| 1
OTUB1 activates deubiquitination stabilization replication A protein RPA1. 1 / 1
| 1

eidos
"Nuclear PTEN also maintains genome stability through multiple mechanisms such as inducing DNA repair protein RAD51 to positively regulate DNA repair through its interaction with centromere protein C17 ,18 , and recruiting the deubiquitinase OTU domain-containing ubiquitin aldehyde-binding protein 1 ( OTUB1 ) to mediate deubiquitination and stabilization of replication factor A protein 1 ( RPA1 ) 19 ."
OTUB1 affects deubiquitination TRAF3
| 1
OTUB1 activates deubiquitination TRAF3. 1 / 1
| 1

eidos
"In RLR pathway , HSCARG stimulates the deubiquitination of TRAF3 by OTUB1 , which further attenuates the phosphorylation of IKKepsilon and IRF3 , and finally decreases the production of type I interferons ; ( B ) HSCARG is involved in intracellular NADPH homeostasis ."
OTUB1 affects deubiquitination TRAF3 TRAF6
| 1
OTUB1 activates deubiquitination TRAF3 TRAF6. 1 / 1
| 1

eidos
"We and others have demonstrated that OTUB1 / 2 and A20 catalyze the deubiquitination of TRAF3 and TRAF6 , which shuts down virus-triggered induction of type I IFNs [ 94 ] ."
OTUB1 affects deubiquitination FOXM1 breast cancer ovarian cancer
| 1
OTUB1 activates deubiquitination FOXM1 breast cancer ovarian cancer. 1 / 1
| 1

eidos
"More interestingly , OTUB1 was shown to promote deubiquitination of FOXM1 in breast cancer [ 26 ] and ovarian cancer [ 27 ] to facilitate tumor progression ."
OTUB1 affects cell viability file Figure S1B
| 1
OTUB1 activates cell viability file Figure S1B. 1 / 1
| 1

eidos
"Furthermore , knockdown of OTUB1 via siOTUB1 # 2 also suppressed cell viability Additional file 1 : Figure S1B ) , proliferation ( Additional file 1 : Figure S1C ) and migration ( Additional file 1 : Figure S1D ) of RCC ."
OTUB1 affects cc4
| 1
| 1

sparser
"It is conceivable that Ub/UbV-CC4 binding to the OTU domain might simply lock the polymerase in an inactive state, preventing RNA synthesis."
OTUB1 bound to UBE2N inhibits biosynthetic process. 1 / 1
| 1

reach
"During the double strand break response, OTUB1 binds to UBE2N and suppresses synthesis of Lys-63–linked polyubiquitin at DNA double strand breaks, thereby regulating the DNA damage response (17)."
OTUB1 affects autoubiquitination
| 1
OTUB1 inhibits autoubiquitination. 1 / 1
| 1

eidos
"In vitro , UBE2E1 is autoubiquitinated in both the presence and absence of an E3 ligase , but this autoubiquitination activity is suppressed by OTUB1 ."
OTUB1 affects autophagy
| 1
| 1

reach
"Consistent with these observations, OTUB1 overexpression induces autophagy while its knockdown represses autophagy induction [XREF_BIBR]."
OTUB1 affects ZNF746
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1 |

No evidence text available
OTUB1 affects VPS45
| 1
| 1

reach
"27,28 OTUB1 interacts with Ubc13 through the H1 helix and S3-S4 and 3 10 -1-H2 loops, which are the same regions involved in OspI binding."
OTUB1 affects Ubiquitin, and cc4
| 1
| 1

sparser
"It is conceivable that Ub/UbV-CC4 binding to the OTU domain might simply lock the polymerase in an inactive state, preventing RNA synthesis."
OTUB1 affects UbVS
| 1
OTUB1 binds UbVS. 1 / 1
| 1

reach
"That this is indeed the case is evident from our observation that UbVS binds to hOtu1 at a site distinct from the catalytic site occupied by Ubal (XREF_FIG)."
OTUB1 affects Ub moiety
| 1
OTUB1 binds Ub moiety. 1 / 1
| 1

reach
"The free Ub moiety interacts with OTUB1 at its distal Ub binding site in a manner nearly identical to yeast Otu1 covalently bound to Ub-Br3 (XREF_SUPPLEMENTARY) burying a total surface area of 2344 A 2."
OTUB1 affects USP9X
| 1
| 1

sparser
"Characterization of ALKBH3-interacting proteins show that USP7 and USP9x associate with another DUB OTU deubiquitinase 4 (OTUD4) to form a protein complex that deubiquitinates ALKBH3 [ xref ]."
OTUB1 affects USP5
| 1
USP5 binds OTUB1 and AR. 1 / 1
| 1

sparser
"The results suggest that AR did not bind to USP5 and OTUB1, but bound to USP14, which is consistent with the previous report (Fig. xref ) [ xref , xref ]."
OTUB1 affects USP47
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1 |

No evidence text available
OTUB1 affects USP21
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1 |

No evidence text available
OTUB1 affects USP10 stabilize mutated wild-type p53 dual tumorigenesis
| 1
OTUB1 inhibits USP10 stabilize mutated wild-type p53 dual tumorigenesis. 1 / 1
| 1

eidos
"For example , USP7 regulates the stability of both p53 and Mdm2 and maintains p53 ubiquitination levels ; 120 USP2 mediates the stability of Mdm2 ; 121 USP10 modulates p53 localization and stability ; 122 OTUB1 abrogates p53 ubiquitination and activates p53.123 Interestingly , USP10 can stabilize both mutated and wild-type p53 , with a dual role in tumorigenesis ."
OTUB1 affects UEV1A
| 1
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
OTUB1 affects UBTD1
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1 |

No evidence text available
OTUB1 affects UBE2N, and VPS45
| 1
| 1

reach
"27,28 OTUB1 interacts with Ubc13 through the H1 helix and S3-S4 and 3 10 -1-H2 loops, which are the same regions involved in OspI binding."
OTUB1 affects UBE2N, UBE2V2, and UEV1A
| 1
| 1

reach
"Finally, we propose a model for how capping of di-Ub by the OTUB1, UBC13, MMS2, and UEV1a complex efficiently inhibits Lys-63-linked tri-Ub formation."
OTUB1 affects UBE2E families
| 1
OTUB1 inhibits UBE2E families. 1 / 1
| 1

reach
"OTUB1 also inhibits E2s of the UBE2D and UBE2E families."
OTUB1 affects UBE2E enzymes
| 1
OTUB1 binds UBE2E enzymes. 1 / 1
| 1

reach
"OTUB1 binding to UBE2E enzymes is therefore more likely to be important for non catalytic inhibition of these E2 enzymes, as has been reported for UBE2E1 35."
OTUB1 affects UBE2D/2E family
| 1
OTUB1 inhibits UBE2D/2E family. 1 / 1
| 1

reach
"It is worth noting that OTUB1 inhibits UBE2D/2E family in in vitro experiments as well as UBC13, indicating that deubiquitylating activity independent regulation of E2 might be a common mechanism for [MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"
OTUB1 affects UBE2D
| 1
OTUB1 inhibits UBE2D-E2S. 1 / 1
| 1

reach
"OTUB1 also inhibits E2s of the UBE2D and UBE2E families."
OTUB1 affects TOMM22
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1 |

No evidence text available
OTUB1 affects TNFRSF13C, and Ubiquitin
| 1

sparser
"The free Ub moiety interacts with OTUB1 at its distal Ub-binding site in a manner nearly identical to yeast Otu1 covalently bound to Ub-Br3 ( xref ) ( xref ) burying a total surface area of 2344 Å 2 ."
OTUB1 affects SMAD2_3, and TGFB
| 1
| 1

sparser
"The TGFβ-induced interaction between OTUB1 and SMAD2/3 was also confirmed in primary cells derived from mice ( xref )."
OTUB1 affects SLIT3
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1 |

No evidence text available
OTUB1 affects SLC25A11
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No evidence text available
OTUB1 affects SLC16A1
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1 |

No evidence text available
OTUB1 affects SIRT3
| 1
| 1

reach
"47 Treating ccRCC cells with MG132 to inhibit SIRT3 ubiquitination, we found that knocking down NUDT1 can significantly reduce the expression of OTUB1 that binds to SIRT3, which indicates that OTUB1 plays an important role in the process of NUDT1 affecting SIRT3 ubiquitination (Figure 4H)."
| PMC
OTUB1 affects SEC61B
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1 |

No evidence text available
OTUB1 affects RP9
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1 |

No evidence text available
OTUB1 affects RNF8-Ubc13
| 1
OTUB1 bound to UBE2N inhibits RNF8-Ubc13. 1 / 1
| 1

reach
"RNF8-Ubc13 interaction is positively regulated by the giant E3 ligase HERC2 [XREF_BIBR], and negatively regulated by the DUB OTUB1, which binds to Ubc13, thereby limiting access of RING domain E3 ligases [XREF_BIBR]."
OTUB1 affects RNF31
| 1
| 1

sparser
"In addition to its catalytic function, the involvement of OTULIN in NFκB signalling is dependent on its ability to bind directly to HOIP through a conserved motif N-terminal to the catalytic OTU domain ( xref ; xref )"
OTUB1 affects RNF2
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1 |

No evidence text available
OTUB1 affects RIG-I-, MDA5-,
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OTUB1 inhibits RIG-I-, MDA5-,. 1 / 1
| 1

reach
"[172] Because various components are involved in virus induced signaling, biochemical assays have demonstrated that OTUB1 and OTUB2 inhibit RIG-I-, MDA5-, and MAVS mediated but not TBK1- and IRF3 mediated signaling."
OTUB1 affects QPCTL
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1 |

No evidence text available
OTUB1 affects Proteasome
| 1
OTUB1 leads to the ubiquitination of Proteasome. 1 / 1
| 1

reach
"Given that OTUB1 has been shown to restrict the ubiquitination and proteasome degradation of target proteins in response to DNA damage, 17 we asked whether FOXM1 is also downregulated through protein degradation by the ubiquitin-proteasome pathway and tested the effect of the proteasome inhibitor MG132 treatment on the expression of endogenous FOXM1 in the absence or presence of epirubicin in MCF-7 cells (XREF_FIG)."
| 1
OTUB1 bound to UBE2N inhibits Polyubiquitin 1 / 1
| 1

reach
"During the double strand break response, OTUB1 binds to UBE2N and suppresses synthesis of Lys-63–linked polyubiquitin at DNA double strand breaks, thereby regulating the DNA damage response (17)."
OTUB1 affects PolyUb chains
| 1
OTUB1 binds PolyUb chains. 1 / 1
| 1

reach
"PolyUb chains of different linkage types bind to hOtu1."
OTUB1 affects Pellino
| 1
| 1

sparser
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig.  xref )."
OTUB1 affects PRDX1
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1 |

No evidence text available
OTUB1 affects PIN1
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1 |

No evidence text available
OTUB1 affects PCNA
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1 |

No evidence text available
OTUB1 affects PC3 C4-2 cells
| 1
OTUB1 activates PC3 C4-2 cells. 1 / 1
| 1

eidos
"In this research , we found that increased OTUB1 could promote proliferation of PC3 and C4-2 cells ."
OTUB1 affects OSGEP
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1 |

No evidence text available
OTUB1 affects NOLC1
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1 |

No evidence text available
OTUB1 affects NAT10
1 |
1 |

No evidence text available
OTUB1 affects MutSalpha
| 1
OTUB1 inhibits MutSalpha. 1 / 1
| 1

reach
"Depleting OTUB1 impairs the cellular proteostasis of MutSalpha and leads to MMR deficiency associated resistance to genotoxic agents."
OTUB1 affects MDM2
| 1
OTUB1 leads to the deubiquitination of MDM2. 1 / 1
| 1

reach
"Examples for DUBs that might antagonize E4 dependent polyubiquitylation are USP47, a regulator of Base Excision Repair (BER) that controls DNA polymerase beta and OTUB1, which mediates DNA damage dependent deubiquitylation of p53 and MDM2 in the cytoplasm."
OTUB1 affects MAG
| 1
OTUB1 binds MAG. 1 / 1
| 1

sparser
"Besides taxon-specific clustering patterns that were evident from 16S rRNA gene profiles and sequence content of the MAGs, OTU1-dominated symbiont-specific transcriptomes formed two separate subclusters based on whether specimens were collected from alga-covered and seagrass-covered quadrats ( xref and xref ), although these transcriptomes shared 0.9 ± 0.01 average pairwise PCC with each other."
OTUB1 affects Lys48
| 1
OTUB1 binds E2 and Lys48. 1 / 1
| 1

reach
"OTUB1 bound to an uncharged E2 actively cleaves Lys48 polyubiquitin, with the E2 lowering the K M for the Lys48 polyubiquitin substrate through interactions between the OTUB1 N-terminus and the E2 (XREF_FIG)."
OTUB1 affects LUC7L2
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1 |

No evidence text available
OTUB1 affects K63-Ub
| 1
OTUB1 inhibits K63-Ub. 1 / 1
| 1

reach
"OTUB1 blocks the generation of K63-Ub through a non-enzymatic activity that involves disruption of the RNF8–UBE2N catalytic cycle [30,31]."
OTUB1 affects JAK
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OTUB1 inhibits JAK. 1 / 1
| 1

reach
"Mechanistically, OTUB1 inhibited IFN-gamma-induced Janus kinase (JAK)/signal transducer and activator of transcription (STAT) signaling by K48 deubiquitination and stabilization of the JAK2 inhibitor suppressor of cytokine signaling 1 (SOCS1)."
OTUB1 affects Invasion PCa Cell
| 1
OTUB1 activates Invasion PCa Cell. 1 / 1
| 1

eidos
"OTUB1 Promotes Proliferation and Invasion of PCa Cell We transfected PC3 and C42 cells with OTUB1 overexpression and otub1 c91s , and the expression level of OTUB1 was detected by Western blotting ."
OTUB1 affects IRAK1
| 1
| 1

sparser
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig.  xref )."
OTUB1 affects IKK_complex
| 1
| 1

sparser
"It has been proposed that the OTU domain of A20 inhibits IKK by removing K63 polyubiquitin chains from target proteins including RIP1 and TRAF6 xref , xref ."
OTUB1 affects IFN-I
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OTUB1 activates IFN-I. 1 / 1
| 1

reach
"Notably, UCHL1, OTUB1, OTUB2, OTUD5, USP25, MYSM1, and MCPIP1 (Figure 3A) negatively regulate virus-induced IFN-I production and antiviral activities by cleaving K63-linked or other types of polyubiquitin chains from TRAF3 or TRAF6."
OTUB1 affects HSPA6
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1 |

No evidence text available
OTUB1 affects HK2
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OTUB1 activates HK2. 1 / 1
| 1

eidos
"In breast cancer , OTUB1 promotes the protein stability of MYC through deubiquitination and mediates HK2 expression to increase aerobic glycolysis ( Han et al ., 2022 ) ."
OTUB1 affects HIF1A
| 1
| 1

sparser
"OTUB1 binds to HIF-1α and depletion of OTUB1 reduces endogenous HIF-1α protein under hypoxia."
OTUB1 affects H2AX
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1 |

No evidence text available
OTUB1 affects Growth PC3
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OTUB1 activates Growth PC3. 1 / 1
| 1

eidos
"OTUB1 Promotes the Growth of PC3 Cell via Increasing Cyclin E1 in vivo Male nude mice aged 4-6 weeks were selected as animal models ."
OTUB1 affects GET3
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1 |

No evidence text available
OTUB1 affects GCLM
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1 |

No evidence text available
OTUB1 affects FOXM1 transcription
| 1
OTUB1 inhibits FOXM1 transcription. 1 / 1
| 1

eidos
"This finding was interesting as OTUB1 inhibits the degradation of FOXM1 transcription factor , typically upregulated and overexpressed in aggressive therapy resistant breast cancer ( 37 ) ."
OTUB1 affects FLAG
| 1
OTUB1 deubiquitinates FLAG. 1 / 1
| 1

reach
"Wild-type OTUB1 and the DeltaN mutant, both capable of cleaving K48 linked di- or polyubiquitin chains in vitro, along with all the catalytically inactive mutants (D88A, C91S, H265A, D/H, D/C/H, K71R) were not able to deubiquitylate the polyubiquitylated FLAG and SMAD2/3/4 complex (XREF_FIG)."
OTUB1 affects FAM136A
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1 |

No evidence text available
OTUB1 affects EZH2
| 1
| 1

sparser
"In a study in 2018, ZRANB1 was identified as the EZH2 deubiquitinase and stabilizes EZH2 through interacting with EZH2 via its OTU domain in breast cancer cells."
OTUB1 affects ELP1
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1 |

No evidence text available
OTUB1 affects DUSP13
1 |
1 |

No evidence text available
OTUB1 affects DNAJA1
1 |
1 |

No evidence text available
OTUB1 affects DDX5
1 |
1 |

No evidence text available
OTUB1 affects DDX23
1 |
1 |

No evidence text available

eidos
"Not only prostate cancer and the above-mentioned cancers , Kai Zhou et al. found that OTUB1 could promote the progression of renal cell carcinoma via mediating the deubiquitination of FOXM1 and up-regulating the expression of ECT-2 ( K. Zhou et al ., 2020 ) ."
OTUB1 affects CSRP2
1 |
1 |

No evidence text available
OTUB1 affects CRKL
1 |
1 |

No evidence text available
OTUB1 affects CFPAC-1 cells
| 1
OTUB1 inhibits CFPAC-1 cells. 1 / 1
| 1

eidos
"Furthermore , Co-Immunoprecipitation and Duolink ( R ) in situ PLA confirmed that OTUB1 , a deubiquitylating enzyme , interacted with SLC7A11 and solasonine to enhance ubiquitinated degradation of SLC7A11 in PANC-1 and CFPAC-1 cells ."
OTUB1 affects CCNB1
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1 |

No evidence text available
OTUB1 affects CBS
1 |
1 |

No evidence text available
OTUB1 affects C1
| 1
C1 binds OTUB1 and MSH2. 1 / 1
| 1

reach
"Taken together, these results indicate that OTUB1 physically interacts with MSH2 via its middle C1 domain, including its catalytic center."
OTUB1 affects BAG6
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1 |

No evidence text available
OTUB1 affects ATP5F1C
1 |
1 |

No evidence text available
OTUB1 affects AR
| 1
USP5 binds OTUB1 and AR. 1 / 1
| 1

sparser
"The results suggest that AR did not bind to USP5 and OTUB1, but bound to USP14, which is consistent with the previous report (Fig. xref ) [ xref , xref ]."
OTUB1 affects ALKBH3
| 1
| 1

sparser
"Characterization of ALKBH3-interacting proteins show that USP7 and USP9x associate with another DUB OTU deubiquitinase 4 (OTUD4) to form a protein complex that deubiquitinates ALKBH3 [ xref ]."
OTUB1 affects ABCF1
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1 |

No evidence text available
OSGEP affects OTUB1
1 |
1 |

No evidence text available
NS1 proteins affects OTUB1
| 1
NS1 proteins inhibits OTUB1. 1 / 1
| 1

eidos
"The NS1 proteins trigger OTUB1 degradation through the proteasome pathway , inhibiting the activation of RIG-I signals during IAV infection ( Jahan et al ., 2020 ) ."
NRAS affects RAS
| 1
RAS binds OTUB1 and NRAS. 1 / 1
| 1

sparser
"Consistently with this observation, both inactive GDP‐bound and active GTP‐γ‐S‐bound forms of NRAS interacted with OTUB1 (Fig  xref E), indicating that GTP binding does not significantly affect the interaction between RAS and OTUB1."
NOLC1 affects OTUB1
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1 |

No evidence text available
NAT10 affects OTUB1
1 |
1 |

No evidence text available
MSH2 affects C1
| 1
C1 binds OTUB1 and MSH2. 1 / 1
| 1

reach
"Taken together, these results indicate that OTUB1 physically interacts with MSH2 via its middle C1 domain, including its catalytic center."
MAPK affects OTUB1
| 1
MAPK activates OTUB1. 1 / 1
| 1

reach
"We observed a similar overactivation of the MAPK pathway, when we overexpressed catalytically inactive OTUB1 C91S-mutant, indicating that catalytic activity of OTUB1 is not necessary to induce the MAPK pathway activation (Fig XREF_FIG F)."
MAG affects OTUB1
| 1
OTUB1 binds MAG. 1 / 1
| 1

sparser
"Besides taxon-specific clustering patterns that were evident from 16S rRNA gene profiles and sequence content of the MAGs, OTU1-dominated symbiont-specific transcriptomes formed two separate subclusters based on whether specimens were collected from alga-covered and seagrass-covered quadrats ( xref and xref ), although these transcriptomes shared 0.9 ± 0.01 average pairwise PCC with each other."
Lys48 affects OTUB1
| 1
OTUB1 binds E2 and Lys48. 1 / 1
| 1

reach
"OTUB1 bound to an uncharged E2 actively cleaves Lys48 polyubiquitin, with the E2 lowering the K M for the Lys48 polyubiquitin substrate through interactions between the OTUB1 N-terminus and the E2 (XREF_FIG)."
LUC7L2 affects OTUB1
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1 |

No evidence text available
IVNS1ABP affects OTUB1
| 1
| 1

reach
"OTUB1 Is a Key Regulator of RIG-I-Dependent Immune Signaling and Is Targeted for Proteasomal Degradation by Influenza A NS1."
IRAK1 affects TRAF6
| 1
| 1

sparser
"In contrast, we did not detect any interactions between OTUB1 and IRAK1, Pellino, or TRAF6 (Supplementary Fig.  xref )."
IL2 affects OTUB1
| 1
Modified IL2 decreases the amount of OTUB1. 1 / 1
| 1

reach
"In addition, we showed that high expression of CTLA-4 and low levels of IL-2 prevented mTOR activation and Otub-1 protein expression, and maintained GRAIL expression, which inhibited T cell proliferation during the acute phase of the infection."
HSPA6 affects OTUB1
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1 |

No evidence text available
HIF1A affects OTUB1
| 1
| 1

sparser
"OTUB1 binds to HIF-1α and depletion of OTUB1 reduces endogenous HIF-1α protein under hypoxia."
HA-UbBr2 affects OTUB1
| 1
HA-UbBr2 activates OTUB1. 1 / 1
| 1

reach
"Both probes appear to label UCH-L3, USP5/16, and USP9/24 most efficiently, and HA-UbBr2 preferentially targets OTUB1."
H2AX affects OTUB1
1 |
1 |

No evidence text available
GET3 affects OTUB1
1 |
1 |

No evidence text available
GCLM affects OTUB1
1 |
1 |

No evidence text available
FAM136A affects OTUB1
1 |
1 |

No evidence text available
EZH2 affects OTUB1
| 1
| 1

sparser
"In a study in 2018, ZRANB1 was identified as the EZH2 deubiquitinase and stabilizes EZH2 through interacting with EZH2 via its OTU domain in breast cancer cells."
ELP1 affects OTUB1
1 |
1 |

No evidence text available

sparser
"We determined a significant interaction between OTUB1 and USP8, RNF128, LRIG1, UBB, UBC, STAM2, RNF41, EGFR, RPS27A, and HGS by PPI."
E2 affects Lys48, and OTUB1
| 1
OTUB1 binds E2 and Lys48. 1 / 1
| 1

reach
"OTUB1 bound to an uncharged E2 actively cleaves Lys48 polyubiquitin, with the E2 lowering the K M for the Lys48 polyubiquitin substrate through interactions between the OTUB1 N-terminus and the E2 (XREF_FIG)."
DUSP13 affects OTUB1
1 |
1 |

No evidence text available
DNAJA1 affects OTUB1
1 |
1 |

No evidence text available
DDX5 affects OTUB1
1 |
1 |

No evidence text available
DDX23 affects OTUB1
1 |
1 |

No evidence text available
DDIT3 affects OTUB1
| 1
DDIT3 increases the amount of OTUB1. 1 / 1
| 1

sparser
"Importantly, DDIT3 induced OTU deubiquitinase 1 (OTUD1) expression by activating the NF-κB signaling pathway, thus increasing intracellular Smurf1 protein levels to degrade MAVS and inhibit IFN-I production during BVDV infection."
CYLD affects OTUB1, SMAD, UCHL5, USP11, USP15, and USP4
| 1
| 1

sparser
"Numerous studies have implicated the potential of DUBs to regulate the TGF-β signaling pathway including USP4, USP11, USP15, CYLD, OTUB1, and UCHL5, which interact with Smads to regulate TGF-β signaling [ xref , xref – xref ]."
CTLA-4 receptors affects OTUB1
| 1
CTLA-4 receptors decreases the amount of OTUB1. 1 / 1
| 1

reach
"Activation of CTLA-4 receptors increases GRAIL levels by repressing the expression of the deubiquitinase Otubain-1 [177] (Figure 3), which controls GRAIL degradation [178]."
| PMC
CSRP2 affects OTUB1
1 |
1 |

No evidence text available
CRKL affects OTUB1
1 |
1 |

No evidence text available
CD4 affects OTUB1
| 1
CD4 activates OTUB1. 1 / 1
| 1

reach
"Human naive CD4 T cells activated in the presence of rapamycin failed to up-regulate Otub1 protein and maintained GRAIL expression (XREF_FIG)."
CCNB1 affects OTUB1
1 |
1 |

No evidence text available
CBS affects OTUB1
1 |
1 |

No evidence text available
C1 affects OTUB1
| 1
C1 binds OTUB1 and MSH2. 1 / 1
| 1

reach
"Taken together, these results indicate that OTUB1 physically interacts with MSH2 via its middle C1 domain, including its catalytic center."
BAG6 affects OTUB1
1 |
1 |

No evidence text available
Activin A affects OTUB1
| 1
Activin A phosphorylates OTUB1 on S16. 1 / 1
| 1

sparser
"Similarly TGFβ, BMP and Activin A did not substantially enhance the phosphorylation of HA-OTUB1 at Ser 16 compared to controls ( xref )."
ATP5F1C affects OTUB1
1 |
1 |

No evidence text available
AR affects USP5
| 1
USP5 binds OTUB1 and AR. 1 / 1
| 1

sparser
"The results suggest that AR did not bind to USP5 and OTUB1, but bound to USP14, which is consistent with the previous report (Fig. xref ) [ xref , xref ]."
ALKBH3 affects USP9X
| 1
| 1

sparser
"Characterization of ALKBH3-interacting proteins show that USP7 and USP9x associate with another DUB OTU deubiquitinase 4 (OTUD4) to form a protein complex that deubiquitinates ALKBH3 [ xref ]."
ABCF1 affects OTUB1
1 |
1 |

No evidence text available
| 1

sparser
"Binding of OTUB1 and E2 enzymes, including UbcH5 and Ubc13, also regulates OTUB1 enzymatic activity towards K48 ubiquitin chains [ xref ]."
1 |

No evidence text available