Figure 4.

Identification of promoters in bidirectional regions. (A) 4 types of promoters. The RPol II binding pattern of 3 types of promoters, double promoter, centre promoter, left promoter and right promoter, showed in UCSC genome browser. (B) The number of identified 4 types of promoter. (C) Histogram illustrating width of overlapping regions of 2 promoters.

Wang et al. BMC Medical Genomics 2013 6(Suppl 1):S5   doi:10.1186/1755-8794-6-S1-S5