Figure 4

Genome-wide histone acetylation changes during osmotic stress. Profiles of H3K9ac (a), H3K14ac (b) and H4K8c (c) of the genes up- or down-regulated by osmotic stress before (left panels) and after (right panels) stress in relation to the levels of core histones (H3 and H4, respectively). The log2 values of the specific immunoprecipitation of the modified histone were represented in relation to the immunoprecipitation of the core histone (i.e., H3 or H4). The real-lengths representation was presented as in Figure 1.