Fig. 2.

Genomic locations of possible TATA boxes relative to TSSs. a Histograms depict distributions of 5′-TATAAA-3′ fragments in promoters. Position 0 corresponds to 5ʹ end of RefSeq entries. b When DBTSS was employed, a sharp peak was observed around position − 31 in each species. In mice, the number of inferred start sites was not large due to a high degree of sequence divergence from humans