Increase in acetylation of histone by TSA and NaB. Cells were treated with DMSO vehicle (0 μm), TSA, or NaB for 6 h at the indicated concentration. Cell lysates were immunoblotted with anti-14-acetyl histone H3, anti-9,14-acetyl histone H3, anti-56-acetyl histone H3, and anti-histone H3 antibodies. n = 3–4.