A direct link exists between hyperacetylation of chromatin and transcriptional activation. Experiments have established that PCAF possesses intrinsic histone acetylase activity. PCAF primarily acetylates lysine 14 of H3. It acetylates lysine 8 of H4 less efficiently. PCAF also acetylates p53 in response to DNA damage. The distinct patterns of acetylation by PCAF may contribute to transcriptional regulation of important genes.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.