
Relative prevalence of putative housekeeping promoters (A), and the number of expressed tissue types and expression level (in noncancer cells) per promoter (B) by promoter type. CpG-rich SPs are enriched for putative housekeeping promoters (A) and tend to be expressed more broadly (B). We used all conserved promoters that were strongly predicted by our discriminator to be AP or SP (having aLLRs in the top and bottom quartiles of the aLLR distribution, respectively).











