... histone H3: N1)9(including K4 and K9), N9)16(including K9 and K14), N16)23(inclu-ding K18 and K23), and N18)25(including K18 and K23); subscripts denote the amino acid residues in thehistone ... groups (lysine residues) and guanidino groups(arginine residues) in histones.Histones consist of a globular C-terminal domain and a flexible N-terminal tail [1]. The amino terminusof histones protrudes ... immunocytochemistry and immunoblotting experiments, suggesting that lysines in histone H3 are biot-inylated in vivo. Dimethylation of R2, R8 and R17 increased biotinylationof K4, K9 and K18, respectively,...