Background of the antigen
Early development regulatory protein 2;hPH2;early development regulator 2 (homolog of polyhomeotic 2);Polycomb group (PcG) proteins assemble into multimeric protein complexes, which are involved in maintaining the transcriptional repressive state of genes throughout development. PHC2 (polyhomeotic-like protein 2), also known as early development regulatory protein 2, is an 858 amino acid nuclear protein that is a component of the PcG multiprotein PRC1 complex. Specifically, the PcG PRC1 complex modifies histones, remodels chromatin and mediates monoubiquination of Histone H2A. Other constituent proteins involved in the PcG PRC1 complex are Mel-18, Bmi-1, M33, MPc2, MPc3, RING1, Ring1b, as well as several others. Phosphorylated upon DNA damage, PHC2 contains one SAM (sterile alpha motif) domain and one FCS-type zinc finger.