Entrez Summary: This gene encodes a protein that contains the CHROMO (CHRomatin Organization MOdifier) domain. The encoded protein is a component of the Polycomb repressive complex 1 (PRC1), and is thought to control the lifespan of several normal human cells. [provided by RefSeq, Oct 2016].
UniProt Summary: 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. Promotes histone H3 trimethylation at 'Lys-9' (H3K9me3). Binds to trimethylated lysine residues in histones, and possibly also other proteins. Regulator of cellular lifespan by maintaining the repression of CDKN2A, but not by inducing telomerase activity. {ECO:0000269|PubMed:19636380, ECO:0000269|PubMed:21047797, ECO:0000269|PubMed:21060834, ECO:0000269|PubMed:21282530}.
Pfam DomainsGO Terms
Pfam Domains
Chromo
GO Terms
PRC1 complex
PcG protein complex
nuclear chromatin
chromatin organization
negative regulation of transcription by RNA polymerase II
chromosome organization
negative regulation of transcription, DNA-templated
negative regulation of nucleic acid-templated transcription
negative regulation of RNA biosynthetic process
negative regulation of RNA metabolic process
negative regulation of cellular macromolecule biosynthetic process
negative regulation of nucleobase-containing compound metabolic process
negative regulation of macromolecule biosynthetic process
negative regulation of cellular biosynthetic process
negative regulation of biosynthetic process
negative regulation of gene expression
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)