Immunogen sequence: NGAAVVRPPG HHAEQDAACG FCFFNSVAVA ARHAQTISGH ALRILIVDWD VHHGNGTQHM FEDDPSVLYV SLHRYDHGTF FPMGDEGASS QIGRAAGTGF T. Responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). H