Figure 4

Some PRGs are transcribed in the presence of FVP. ChIP assays were performed, as described in the Methods section. Percent of input chromatin specifically immunoprecipitated with anti-RNAPII antibodies is represented at 0 and 15' (upper graph), 0 and 4 h (middle graph) and 0 and 22 h (bottom graph) for each primer set. The upper panel depicts the gene structure of FOS, EGR1 and GADD45B and the position of the corresponding primer pair sets (see text for details).