Claim: TAFII25 binds to TAFII259 and inhibits its acetyltransferase activity and the exact role of TAFII25 is currently uknown but studies have shown that it interacts with the C-jun pathway.
Evidence: Gcn5, p300/CBP, and TAFII250 are some examples of type A HATs that cooperate with activators to enhance transcription.