FUNCTION: Hydrolase that deubiquitinates polyubiquitinated target proteins such as MDM2, MDM4 and CCND1 (PubMed:17290220, PubMed:19917254, PubMed:19838211). Isoform 1 and isoform 4 possess both ubiquitin-specific peptidase and isopeptidase activities (By similarity). Deubiquitinates MDM2 without rev...
FUNCTION: Hydrolase that deubiquitinates polyubiquitinated target proteins such as MDM2, MDM4 and CCND1 (PubMed:17290220, PubMed:19917254, PubMed:19838211). Isoform 1 and isoform 4 possess both ubiquitin-specific peptidase and isopeptidase activities (By similarity). Deubiquitinates MDM2 without reversing MDM2-mediated p53/TP53 ubiquitination and thus indirectly promotes p53/TP53 degradation and limits p53 activity (PubMed:17290220, PubMed:19838211). Has no deubiquitinase activity against p53/TP53 (PubMed:17290220). Prevents MDM2-mediated degradation of MDM4 (PubMed:17290220). Plays a role in the G1/S cell-cycle progression in normal and cancer cells (PubMed:19917254). Regulates the circadian clock by modulating its intrinsic circadian rhythm and its capacity to respond to external cues (By similarity). Associates with clock proteins and deubiquitinates core clock component PER1 but does not affect its overall stability (By similarity). Regulates the nucleocytoplasmic shuttling and nuclear retention of PER1 and its repressive role on the clock transcription factors CLOCK and ARNTL/BMAL1 (By similarity). Plays a role in the regulation of myogenic differentiation of embryonic muscle cells (By similarity). {ECO:0000250|UniProtKB:O88623, ECO:0000250|UniProtKB:Q5U349, ECO:0000269|PubMed:17290220, ECO:0000269|PubMed:19838211, ECO:0000269|PubMed:19917254}.; FUNCTION: [Isoform 4]: Circadian clock output effector that regulates Ca(2+) absorption in the small intestine. Probably functions by regulating protein levels of the membrane scaffold protein NHERF4 in a rhythmic manner, and is therefore likely to control Ca(2+) membrane permeability mediated by the Ca(2+) channel TRPV6 in the intestine. {ECO:0000250|UniProtKB:O88623}.
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GO - Biological processes (BP):
cell cycle [GO:0007049]; circadian behavior [GO:0048512]; circadian regulation of gene expression [GO:0032922]; entrainment of circadian clock by photoperiod [GO:0043153]; locomotor rhythm [GO:0045475]; muscle organ development [GO:0007517]; negative regulation of transcription by RNA polymerase II ...
cell cycle [GO:0007049]; circadian behavior [GO:0048512]; circadian regulation of gene expression [GO:0032922]; entrainment of circadian clock by photoperiod [GO:0043153]; locomotor rhythm [GO:0045475]; muscle organ development [GO:0007517]; negative regulation of transcription by RNA polymerase II [GO:0000122]; positive regulation of mitotic cell cycle [GO:0045931]; protein deubiquitination [GO:0016579]; protein stabilization [GO:0050821]; regulation of signal transduction by p53 class mediator [GO:1901796]; ubiquitin-dependent protein catabolic process [GO:0006511]
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GO - Molecular function (MF):
cyclin binding [GO:0030332]; cysteine-type endopeptidase activity [GO:0004197]; identical protein binding [GO:0042802]; metal ion binding [GO:0046872]; thiol-dependent deubiquitinase [GO:0004843]; ubiquitin protein ligase binding [GO:0031625]...
cyclin binding [GO:0030332]; cysteine-type endopeptidase activity [GO:0004197]; identical protein binding [GO:0042802]; metal ion binding [GO:0046872]; thiol-dependent deubiquitinase [GO:0004843]; ubiquitin protein ligase binding [GO:0031625]
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GO - Cellular component (CC):
centrosome [GO:0005813]; cytoplasm [GO:0005737]; membrane [GO:0016020]; nucleoplasm [GO:0005654]; perinuclear region of cytoplasm [GO:0048471]...
centrosome [GO:0005813]; cytoplasm [GO:0005737]; membrane [GO:0016020]; nucleoplasm [GO:0005654]; perinuclear region of cytoplasm [GO:0048471]
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