Overview:

KAT2B (also known as PCAF) is a transcription cofactor with a histone acetyltransferase (HAT) activity. KAT2B protein associates with p300/CBP which is a large nuclear protein that bind to many sequence-specific factors that are involved in cell growth and/or differentiation, including c-jun and the adenoviral oncoprotein E1A (1). KAT2B has histone acetyl transferase activity with core histones and nucleosome core particles indicating that KAT2B plays a direct role in transcriptional regulation (2). PCAF functions as a coordinating factor in the regulation of HIF1A-mediated apoptosis and p53-dependent cell cycle progression.

Gene Aliases:

PCAF, CAF, P/CAF, GCN5L, GCN5L1

Genbank Number:

NM_003884

References:

1. Yang, X.-J. et.al: A p300/CBP-associated factor that competes with the adenoviral oncoprotein E1A. Nature 382: 319-324, 1996.

2. Xu, W. et.al: Mammalian GCN5 and P/CAF acetyltransferases have homologous amino-terminal domains important for recognition of nucleosomal substrates. Molec. Cell. Biol. 18: 5659-5669, 1998.