PCGF2 Antibody – Rabbit Polyclonal

The protein encoded by this gene contains a RING finger motif and is similar to the polycomb group (PcG) gene products. PcG gene products form complexes via protein-protein interaction and maintain the transcription repression of genes involved in embryogenesis, cell cycles, and tumorigenesis. This protein was shown to act as a negative regulator of transcription and has tumor suppressor activity. The expression of this gene was detected in various tumor cells, but is limited in neural organs in normal tissues. Knockout studies in mice suggested that this protein may negatively regulate the expression of different cytokines, chemokines, and chemokine receptors, and thus plays an important role in lymphocyte differentiation and migration, as well as in immune responses. [provided by RefSeq, Jul 2008]

PCGF2: Transcriptional repressor. Binds specifically to the DNA sequence 5'-GACTNGACT-3'. Has tumor suppressor activity. May play a role in control of cell proliferation and/or neural cell development. Regulates proliferation of early T progenitor cells by maintaining expression of HES1. Also plays a role in antero- posterior specification of the axial skeleton and negative regulation of the self-renewal activity of hematopoietic stem cells. 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. Is not functionally redundant with Bmi1; unlike Bmi1 does not stimulate the E3 ubiquitin-protein ligase activity in a reconstituted PRC1-like complex.

Protein type: Transcription factor; Ubiquitin conjugating system; Ubiquitin ligase

Chromosomal Location of Human Ortholog: 17q12

Cellular Component: nuclear chromatin; nucleoplasm; nucleus; PcG protein complex

Molecular Function: protein binding; transcription factor activity

Biological Process: negative regulation of transcription from RNA polymerase II promoter; protein sumoylation