- The TAF(II)250 subunit of TFIID has histone acetyltransferase activity. Mizzen, C.A., Yang, X.J., Kokubo, T., Brownell, J.E., Bannister, A.J., Owen-Hughes, T., Workman, J., Wang, L., Berger, S.L., Kouzarides, T., Nakatani, Y., Allis, C.D. Cell (1996)