Histone acetylation is enriched near gene promoters.
A, the percentage of IFNγ-induced H3ac or H4ac marked sites versus randomly generated controls at proximal (≤5 kb) or distal (>5 kb) sites relative to the TSS of known genes. B, histograms show the percentages of total, constitutive, and induced H3ac (left) and/or H4ac (right) at proximal (≤5 kb) and distal (>5 kb) sites of ISGs, separated into isolated or dual (overlapping H3ac/H4ac) acetylation. The total number of sites in each category is indicated below the bars. Const., constitutive; Ind., induced.