Transcriptional repressor . May modulate the levels of histone H3K4Me3 by activating KDM5D histone demethylase . 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 . Within the PRC1-like complex, regulates RNF2 ubiquitin ligase activity .
Nucleus .
Ubiquitous.
下载说明书
