Immunogen sequence: LAVPSWRDHS VEPLRDPNPS DLLENLDDSV FSKRHAKLEL DEKRRKRWDI QRIREQRILQ RLQLRMYKKK GIQESEPEVT SFFPEPDDVE S. Component of histone acetyltransferase complex responsible for the majority of histone H4 acetylation at 'Lys-16' (H4K16ac) which is