Figure 2
From: A comparative genomics approach to identifying the plasticity transcriptome
Relative frequency of transcription factor binding sites within promoter regions across species. (A) The percentage of human, mouse, and rat promoters with a predicted CREB binding site. (B) The same as (A), but for zif268. (C) The percent of genes within the homologene dataset showing a CREB or zif268 site, calculated by (# of promoters with a binding site × 100)/(# of human and mouse homologous pairs).