Figure 6. The dTip60 Histone Acetyltransferase Is Necessary for Acetylation of Histone H2A Lysine 5 and Activation of PARP upon Heat Shock.
(A) ChIP of H2AK5 acetylation at the Hsp70Ab HS locus in dTip60 knockdown cells. S2 cells RNAi-depleted of dTip60 and heat-shocked for either 0 (light blue) or 2 min (pink) are compared to LacZ RNAi cells heat-shocked for 0 (dark blue) or 2 min (red). The level of H2AK5 acetylation is normalized to ChIP values for histone H2A and plotted on the y axis. Error bars represent the SEM of three independent experiments for all three panels.
(B) ChIP of PARP in dTip60 knockdown cells. S2 cells RNAi depleted of dTip60 and heat-shocked for either 0 (light blue) or 2 min (pink) are compared to LacZ RNAi treated cells heat-shocked for 0 (dark blue) or 2 min (red).
(C) ChIP of PAR in dTip60 knockdown cells as in (B).