TAF5L: ProductsTAF5L (TBP-Associated Factors 5-Like; also RNA polymerase II p300-associated factor 65 kDa subunit 5L, PACF65 beta, PAF65 beta and STAF65 beta) is a 64-66 kDa member of the TAF5 family of proteins. It is a nuclear protein that forms part of the PCAF, STAGA and TFTC histone acetylase complexes. The acetylases within these complexes acetylate hisone H3 within nucleosomes, allowing for the recognition and binding of transcriptional activators. Human TAF5L is 589 amino acids (aa) in length. It contains an N-terminal homodimerization interface (aa 90 198) plus six consecutive WD repeats (aa 266547). There is one potential splice form that shows a Val substitution for aa 325589. Over aa 1189, human TAF5L shares 94% aa identity with mouse TAF5L.