Fig. 3

Heat map of nucleosome density and GC content in between NIEBs. The 1,581,005 inter-NIEB regions were centered at 0 and ordered vertically from the smallest (top) to the largest (bottom). a “Schones” in vivo data; (b) “Valouev” in vivo data; (c) “Valouev” in vitro data; (d) in silico nucleosome density computed at high nucleosome coverage (Methods); (e) GC content. Only the central part of inter-NIEB regions larger than 1.6 kb were shown to enlighten the absence of nucleosome positioning in these regions. Each horizontal line represents the mean nucleosome coverage over 200 inter-NIEB regions coded from white (0) to full color (1) (Methods)