(A) Acetylation of K56 weakens the interactions between the H3 αN helix and the DNA. Best representative structure showing the interactions between the H3 αN helix and the DNA in the left panel; the corresponding hydrogen bond numbers are depicted in the right panel. Details concerning all the hydrogen bond acceptor-donor pairs are listed in Table S1.
(B) Acetylation of K56 dimishes the interactions of H2A R81 and the surrounding residues, Q55 of H3 and G105/V107 from the H2A C-loop. Best representative structure showing the interactions between H2A R81 and the surrouding residues in the left panel; the corresponding hydrogen bond numbers are shown in the right panel. Details concerning all the hydrogen bond acceptor-donor pairs are listed in Table S2.