PF1: Proteins and Enzymes

PHD factor 1 (PF1) was identified as a protein that interacts with mSin3A-histone deacetylase corepressor, a multiprotein complex that mediates transcriptional repression. PF1 is a plant homeodomain zinc finger protein that also bears a forkhead-associated (FHA) domain. PF1 appears to facilitate the recruitment of the mSin3A complex to DNA for transcriptional repression. It has also been shown to interact with the histone deacetylase containing corepressor transducin-like enhancer of split (TLE) and may play a role in bridging the mSin3A and TLE transcriptional networks. Alternate names for PF1 include PHF12, PHD finger protein 12, and KIAA1523.