Fig. 4

Profiling of histone marks and nucleosome occupancy between coexpressed and anti-expressed bidirectional gene pairs. Either coexpressed or anti-expressed bidirectional gene pairs with higher and lower FPKM values were aligned on the right and left sides of BDPs, respectively. a: H3K4me2; b: H3K4me3; c: H3K36me3; d: H3K4ac; e: H3K9ac; f: H4K12ac; g: H3K27ac; h: nucleosome occupancy. Normalized reads counts indicating the enrichment of each mark were calculated by reads number per bp of genomic region per million reads. X-axes show the relative distances from the BDP (bp); Y-axes show normalized reads counts (read number per bp of genome per million reads) within 1 kb upstream and downstream of the TSS