IndraLab

Statements


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sparser
"USP4 interacts with the retinoblastoma binding protein 8 (CtIP, also known as RBBP8) and the MRE11RAD50-NBS1 (MRN) complex [ xref , xref ]."

sparser
"Because USP4 autodeubiquitination did not affect its levels, the next question we asked was whether USP4 autodeubiquitination could affect USP4-CtIP interaction."

sparser
"As shown in Figure 7 B, USP4 catalytic activity is essential for the USP4-CtIP interaction."

sparser
"USP4-CtIP interaction is a little increased after IR treatment, but in the USP4CA mutant cells, USP4-CtIP interaction is almost gone, even in IR-treated cells."

sparser
"This result suggests that USP4 promotes USP4-CtIP interaction specifically through its deubiquitinase activity and likely through its autodeubiquitination."

reach
"They both demonstrated that USP4 interacts with CtIP and MRN and regulates the recruitment of CtIP to DSBs."

sparser
"These are consistent with our results; CtIP N-terminal could interact with USP4, and this interaction is essential for DNA end resection."

sparser
"USP4 interacts with CtIP and MRN via the C-terminal insert domain (residues 572–773) and intact catalytic domain of USP4, respectively."

sparser
"More importantly, USP4 ubiquitination can block USP4-CtIP interaction, whereas the USP4CA mutant could not mediate its autodeubiquitination, and sustained ubiquitination of USP4 would block its intera[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"Of note, USP4 can deubiquitinate itself, and this autodeubiquitination function is crucial for the USP4-CtIP interaction, which occurs in HR ( xref ; xref )."

reach
"USP4 interacts with CtIP and regulates the recruitment of CtIP to DNA damage sites through its deubiquitylating enzyme activity."

sparser
"USP4 binds CtIP and MRN complexes to regulate DDR and thereby promotes homologous recombination [ xref ]."

sparser
"We also could not exclude other mechanisms; for example, there might be other factors that help the deubiquitinated USP4 interact with CtIP."

sparser
"Our results revealed that USP4 interacts with CtIP and USP4-CtIP interaction is important for HR."

reach
"USP4 binds CtIP and MRN complexes to regulate DDR and thereby promotes homologous recombination [42]."

sparser
"Of note, the interaction between USP4 and the DNA endonuclease CtIP (RDDP8), critical to DSB end resection in xref ; xref ), represents a postWGD neofunctionalization."

sparser
"In addition, USP4 interacts with MRN and CtIP promotes the interaction between these proteins [ xref , xref ]."

sparser
"USP4 interacts with CtIP, in addition to NBS1 as part of the MRN complex, with USP4 depletion reducing the recruitment of CtIP, RPA, and RAD51 loading to DSB sites [ xref ]."

sparser
"We set out to detangle the DUB network and distinguish redundancy that results from postduplicative conservation of interaction domains from neofunctionalization events, such as the WGD-derived USP4-CtIP interaction in DSB repair."

reach
"Deletion of USP4 insert domain (residues 572-775) abolished the binding of USP4 with CtIP."

reach
"USP4 interacts with the retinoblastoma binding protein 8 (CtIP, also known as RBBP8) and the MRE11RAD50-NBS1 (MRN) complex [XREF_BIBR, XREF_BIBR]."

reach
"As USP4 directly interacts with CtIP, we also checked CtIP foci formation in USP4 depleted cells."

reach
"These results indicate that the deubiquitylating enzyme activity of USP4 is required for its function in HR.Our results revealed that USP4 interacts with CtIP and USP4-CtIP interaction is important fo[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

sparser
"USP4 interacts with CtIP and regulates the recruitment of CtIP to DNA damage sites through its deubiquitylating enzyme activity ( xref )."

reach
"Here, we report that USP4 interacts with both MRN complex and CtIP, which is a positive regulator of DNA end resection, thus promoting HR.Both the C terminus and the N terminus of CtIP protein are req[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

reach
"These are consistent with our results; CtIP N-terminal could interact with USP4, and this interaction is essential for DNA end resection."

reach
"USP4 interacts with CtIP and MRN via the C-terminal insert domain (residues 572-773) and intact catalytic domain of USP4, respectively."

reach
"Wealso report that USP4 interacts with CtIP and the MRE11-RAD50-NBS1 (MRN) complex and is required for CtIP recruitment to DNA damage sites."

reach
"Additionally, we establish that USP4 interacts with CtIP and the MRN complex via its C-terminal insert domain and that these interactions are subject to a USP4 auto-regulatory deubiquitylation mechanism."

reach
"In light of the above findings, we tested whether USP4 might physically interact with CtIP and/or MRN."

sparser
"Notably, this USP4-mediated de-ubiquitination of BRCA1 is CtIP independent, indicating that USP4-BRCA1 axis is a distinct pathway other than USP4-CtIP in regulating HR."

sparser
"They both demonstrated that USP4 interacts with CtIP and MRN and regulates the recruitment of CtIP to DSBs."

reach
"We and others report that USP4 interacts with CtIP and the MRE11-RAD50-NBS1 (MRN) complex and is required for CtIP recruitment to DNA damage sites and DNA end resection."

sparser
"As shown in Figure 1 B, endogenous USP4 and CtIP interact with each other in cells."

reach
"These papers have reported that USP4 interacts with MRN complex and CtIP dependently on its catalytic activity."

sparser
"We did the coIP experiment after DNase treatment; this result indicated that CtIP-USP4 interaction was not bridged by DNA."

sparser
"To identify the regions of USP4 that are responsible for the USP4-CtIP interaction, we generated deletion mutants of USP4 ( Figure 1 C)."

sparser
"Deletion of USP4 insert domain (residues 572–775) abolished the binding of USP4 with CtIP."

reach
"USP4, for example, interacts directly with end resection factors CtIP and MRN [172], USP21 deubiquitinates and stabilizes BRCA2 to promote RAD51 binding and successful HR [173], and USP10 deubiquitinates and stabilizes p53 to promote its nuclear localization and apoptosis in response to DSBs [174]."

reach
"Previous study showed that CtIP interacts with the MRE11-RAD50-NBS1 (MRN) complex and USP4 which is required for CtIP recruitment to DNA damage sites."

sparser
"As USP4 directly interacts with CtIP, we also checked CtIP foci formation in USP4-depleted cells."

sparser
"Wijnhoven et al. revealed that the human deubiquitylase USP4 promotes homologous recombination, DNA end-resection, and CtIP recruitment and that USP4 interacts with CtIP and MRN."

sparser
"Because it was reported that USP4 interacts with CtIP but does not affect the latter’s ubiquitination level xref , we chose USP52 as the candidate DUB for CtIP."

sparser
"Because USP4 interacts with the N-terminal of CtIP through its insert domain, CtIP N-terminal is essential for its foci formation and depletion of USP4 decreased CtIP foci formation."

sparser
"We hypothesized that USP4-CtIP interaction is required for CtIP recruitment to the DNA damage sites."

reach
"During the course of our studies, we observed that mutating theUSP4 catalytic cysteine to alanine (C311A) to render USP4 enzymatically inactive (" catalytic-dead " [CD]), almost totally abrogated its interactions with CtIP and MRN (XREF_FIG A; note that binding of USP4 to CtIP and RAD50 was not abrogated by the DNA intercalating agent ethidium bromide (EtBr), suggesting that interaction was not mediated by DNA bridging."

sparser
"USP4 interacts with both CtIP and the MRN complex via a specific conserved region on USP4 and the catalytic domain of USP4, respectively, to promote the recruitment of the DNA end-resection factor CtIP to dsDNA break sites [ xref ]."

sparser
"These results indicate that the USP4-CtIP interaction is required for its function in HR."