Figure 4.

Comparison of promoter regions and TSS distributions determined by RE EST, CAGE, and RACE data. (A) The numbers of clusters in overlapping subsets of CAGE peaks, RACE clusters, and RE EST clusters are indicated. Validated promoters (V) are defined by at least two of the three assays; supported promoters (S) are defined by one assay only but overlap an annotated promoter or 5′ UTR; unsupported CAGE-only (C) and RACE-only (R) clusters do not overlap annotated promoters or 5′ UTRs. (B) The relative offsets of TSS locations by pairwise comparisons of the three assays. The mean pairwise offset is 1.7 nt.