FUNCTION: Catalytic subunit of the KPC complex that acts as E3 ubiquitin-protein ligase. Promotes the ubiquitination and proteasome-mediated degradation of CDKN1B which is the cyclin-dependent kinase inhibitor at the G0-G1 transition of the cell cycle (PubMed:15531880, PubMed:16227581). Functions al...
FUNCTION: Catalytic subunit of the KPC complex that acts as E3 ubiquitin-protein ligase. Promotes the ubiquitination and proteasome-mediated degradation of CDKN1B which is the cyclin-dependent kinase inhibitor at the G0-G1 transition of the cell cycle (PubMed:15531880, PubMed:16227581). Functions also as an inhibitor of innate antiviral signaling mediated by DDX58 and IFIH1 independently of its E3 ligase activity (PubMed:27312109). Interacts with the N-terminal CARD domains of DDX58 and IFIH1 and competes with the downstream adapter MAVS (PubMed:27312109). {ECO:0000269|PubMed:15531880, ECO:0000269|PubMed:16227581, ECO:0000269|PubMed:27312109}.
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GO - Biological processes (BP):
proteolysis involved in cellular protein catabolic process [GO:0051603]...
proteolysis involved in cellular protein catabolic process [GO:0051603]
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GO - Molecular function (MF):
metal ion binding [GO:0046872]; ubiquitin-protein transferase activity [GO:0004842]...
metal ion binding [GO:0046872]; ubiquitin-protein transferase activity [GO:0004842]
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GO - Cellular component (CC):
cytoplasm [GO:0005737]; cytosol [GO:0005829]; nuclear membrane [GO:0031965]...
cytoplasm [GO:0005737]; cytosol [GO:0005829]; nuclear membrane [GO:0031965]
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