Fig. 1
Post-translational modifications on the histone H2B. a The acetylation and methylation sites of H2B in the human prostate cancer DU-145 cells. b The acetylation, methylation, and phosphorylation of H2B in the non-malignant prostatic RC170N/h cells. c Histone H2B modifications in the DU-145 cells after sodium butyrate treatment. 
indicates acetylation, 
indicates methylation, 
indicates di-methylation, 
indicates tri-methylation, and 
indicates phosphorylation. The H2B histone sequence is presented at the lower part of the figure. The underscored sequences represent the alpha helices in the structured domains of the histone