FUNCTION: Deubiquitinase that plays a key regulatory role in the spindle assembly checkpoint or mitotic checkpoint by preventing premature anaphase onset. Acts by specifically mediating deubiquitination of CDC20, a negative regulator of the anaphase promoting complex/cyclosome (APC/C). Deubiquitinat...
FUNCTION: Deubiquitinase that plays a key regulatory role in the spindle assembly checkpoint or mitotic checkpoint by preventing premature anaphase onset. Acts by specifically mediating deubiquitination of CDC20, a negative regulator of the anaphase promoting complex/cyclosome (APC/C). Deubiquitination of CDC20 leads to stabilize the MAD2L1-CDC20-APC/C ternary complex (also named mitotic checkpoint complex), thereby preventing premature activation of the APC/C. Promotes association of MAD2L1 with CDC20 and reinforces the spindle assembly checkpoint. Acts as a negative regulator of histone H2B (H2BK120ub1) ubiquitination. {ECO:0000269|PubMed:17443180, ECO:0000269|PubMed:22681888}.
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GO - Biological processes (BP):
cell cycle [GO:0007049]; cell division [GO:0051301]; chromosome segregation [GO:0007059]; negative regulation of ubiquitin protein ligase activity [GO:1904667]; proteasome-mediated ubiquitin-dependent protein catabolic process [GO:0043161]; protein deubiquitination [GO:0016579]; regulation of mitoti...
cell cycle [GO:0007049]; cell division [GO:0051301]; chromosome segregation [GO:0007059]; negative regulation of ubiquitin protein ligase activity [GO:1904667]; proteasome-mediated ubiquitin-dependent protein catabolic process [GO:0043161]; protein deubiquitination [GO:0016579]; regulation of mitotic cell cycle spindle assembly checkpoint [GO:0090266]
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GO - Molecular function (MF):
thiol-dependent deubiquitinase [GO:0004843]; zinc ion binding [GO:0008270]...
thiol-dependent deubiquitinase [GO:0004843]; zinc ion binding [GO:0008270]
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GO - Cellular component (CC):
cytoplasm [GO:0005737]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]...
cytoplasm [GO:0005737]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]
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