FUNCTION: E3 SUMO-protein ligase which facilitates SUMO1 conjugation by UBE2I (PubMed:12679040). Involved in the sumoylation of HNRNPK, a p53/TP53 transcriptional coactivator, hence indirectly regulates p53/TP53 transcriptional activation resulting in p21/CDKN1A expression. Monosumoylates ZNF131 (Pu...
FUNCTION: E3 SUMO-protein ligase which facilitates SUMO1 conjugation by UBE2I (PubMed:12679040). Involved in the sumoylation of HNRNPK, a p53/TP53 transcriptional coactivator, hence indirectly regulates p53/TP53 transcriptional activation resulting in p21/CDKN1A expression. Monosumoylates ZNF131 (PubMed:22825850). {ECO:0000269|PubMed:12679040, ECO:0000269|PubMed:22825850}.; FUNCTION: Component of a Polycomb group (PcG) multiprotein PRC1-like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development (PubMed:12167701, PubMed:19636380, PubMed:21282530). PcG PRC1 complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility (PubMed:12167701, PubMed:19636380, PubMed:21282530). Binds to histone H3 trimethylated at 'Lys-9' (H3K9me3) (By similarity). Plays a role in the lineage differentiation of the germ layers in embryonic development (By similarity). {ECO:0000250|UniProtKB:O55187, ECO:0000269|PubMed:12167701, ECO:0000269|PubMed:19636380, ECO:0000269|PubMed:21282530}.
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GO - Biological processes (BP):
chromatin organization [GO:0006325]; negative regulation of apoptotic process [GO:0043066]; negative regulation of transcription, DNA-templated [GO:0045892]; negative regulation of transcription by RNA polymerase II [GO:0000122]...
chromatin organization [GO:0006325]; negative regulation of apoptotic process [GO:0043066]; negative regulation of transcription, DNA-templated [GO:0045892]; negative regulation of transcription by RNA polymerase II [GO:0000122]
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GO - Molecular function (MF):
chromatin binding [GO:0003682]; enzyme binding [GO:0019899]; methylated histone binding [GO:0035064]; phosphoprotein binding [GO:0051219]; single-stranded RNA binding [GO:0003727]; SUMO binding [GO:0032183]; SUMO ligase activity [GO:0061665]; SUMO transferase activity [GO:0019789]; transcription cis...
chromatin binding [GO:0003682]; enzyme binding [GO:0019899]; methylated histone binding [GO:0035064]; phosphoprotein binding [GO:0051219]; single-stranded RNA binding [GO:0003727]; SUMO binding [GO:0032183]; SUMO ligase activity [GO:0061665]; SUMO transferase activity [GO:0019789]; transcription cis-regulatory region binding [GO:0000976]; transcription corepressor activity [GO:0003714]
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GO - Cellular component (CC):
nuclear body [GO:0016604]; nuclear speck [GO:0016607]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]; PcG protein complex [GO:0031519]; PRC1 complex [GO:0035102]...
nuclear body [GO:0016604]; nuclear speck [GO:0016607]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]; PcG protein complex [GO:0031519]; PRC1 complex [GO:0035102]
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