UniProt functional annotation for Q86SE9

UniProt code: Q86SE9.

Organism: Homo sapiens (Human).
Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
 
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. 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:26151332). Within the PRC1-like complex, regulates RNF2 ubiquitin ligase activity (PubMed:26151332). Plays a redundant role with PCGF3 as part of a PRC1-like complex that mediates monoubiquitination of histone H2A 'Lys-119' on the X chromosome and is required for normal silencing of one copy of the X chromosome in XX females (By similarity). {ECO:0000250|UniProtKB:Q3UK78, ECO:0000269|PubMed:26151332}.
 
Subunit: Component of a PRC1-like complex that contains PCGF5, RNF2 and UBE2D3 (PubMed:21282530, PubMed:26151332). Interacts with RNF2; the interaction is direct (PubMed:26151332). Interacts with CBX6, CBX7 and CBX8 (PubMed:21282530). Interacts with AUTS2; the interaction is direct (PubMed:25519132). Identified in a complex that contains AUTS2, PCGF5, CSNK2B and RNF2 (PubMed:25519132). {ECO:0000269|PubMed:21282530, ECO:0000269|PubMed:25519132}.
Subcellular location: Nucleus {ECO:0000269|PubMed:21282530, ECO:0000269|PubMed:25519132}. Nucleus, nucleoplasm {ECO:0000250|UniProtKB:Q3UK78}. Note=Recruited by the non-coding RNA Xist to specific nuclear foci that probably correspond to the inactivated X chromosome. {ECO:0000250|UniProtKB:Q3UK78}.

Annotations taken from UniProtKB at the EBI.