Figure 6

Inhibition of Brd proteins binding to acetylated chromatin by JQ1 impairs the transcriptional activation of sat III sequences by RNAP II in stressed cells. (a) HSF1 (green signals) was either co-detected with BRD4 by immunofluorescence (red signals) (upper image) or detected with acetylated Lysine (lower image) (b) hsp70 (red signals) and sat III (green signals) RNA were detected with RNA FISH (same exposure time were used in both conditions). (c) Impact of JQ1 on hsp70 and sat III RNA accumulation by Northern blot on RNA fractions prepared from unstressed (NHS) and stressed (HS) cells treated or not with JQ1 (original blots are displayed in Supplementary Figure S5).