IndraLab

Statements


USP8 is ubiquitinated. 15 / 15
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sparser
"These data suggest a reciprocal E3-DUB relationship in which GRAIL can ubiquitinate USP8, and ubiquitinated USP8 can de-ubiquitinate GRAIL."

sparser
"In the present study the linkage between PTEN loss, Akt activation, and USP8 levels and activity appeared to be somewhat different, and in our work Akt activation decreased, rather than enhanced, USP8 function by increasing USP8 ubiquitination and decreasing steady-state USP8 levels (data not shown)."

sparser
"It does so by ubiquitinating, destabilizing and relocalizing the deubiquitinase USP8 (ubiquitin-specific protease 8)."

sparser
"In particular, IL-2R signaling leads to Akt and mTOR activation, Otub1 translation, de-ubiquitination of ubiquitinated USP8, and subsequent degradation of GRAIL that permits T cell proliferation."

sparser
"This effect is co-activated by the deubiquitinases USP8 and USP9X. The AKT kinase has been previously shown to decrease USP8 function by increasing USP8 ubiquitination and decreasing active steady-state USP8 level [ xref ]."

sparser
"This increased ubiquitination was dependent on the E3 activity of GRAIL, as no enhanced ubiquitination of USP8 was observed in the presence of the H2N2 ligase defective mutant of GRAIL."

sparser
"Next to ubiquitinating BRUCE, Parkin and USP8 [ xref , xref , xref ], it is known to downregulate ErbB3 and ErbB4 receptors, as well as several type I cytokine receptors such as the IL-3, EPO, IL-6, LIF and LR [ xref , xref – xref ]."

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

sparser
"RNF41 redistributes and ubiquitylates USP8, and reduces USP8 levels."

sparser
"Others suggest that USP8 counter-regulates EGF-induced ubiquitination of the ESCRT-III component CHMP1B, allowing it to assemble into a membrane-associated ESCRT-III polymer required for budding [ xref ]."

sparser
"Furthermore, the presence of wild-type GRAIL along with USP8 increased the amount of ubiquitinated USP8, which was further enhanced when the DUB activity of USP8 was abolished."

sparser
"It reroutes IL6Rα, LIFRα and LR from the lysosomal degradation pathway to compartments where ectodomain shedding occurs by ubiquitinating and suppressing USP8 [ xref , xref ]."

sparser
"In EGF-stimulated cells, UBPY underwent ubiquitination and bound to EGFR."

sparser
"Next to this, RNF41 regulates the intracellular trafficking of certain JAK2-associated cytokine receptors by ubiquitinating and suppressing USP8, which, in turn, destabilizes the ESCRT-0 complex."

sparser
"Mechanistically, the E3 ligase Nrdp1 indirectly destabilizes the ESCRT-0 complex by ubiquitinating and suppressing USP8."