Outcome of mapping orthologous bidirectional promoters from human to mouse. The Known Genes dataset in humans was mapped to orthologous positions in mouse and validated using Known Genes annotations in mouse. Arranged by chromosome, bidirectional promoters were validated as orthologous when orthologous genes were present on both sides of the promoter in the second species. These examples are colored brown. Instances with one orthologous gene flanking the promoter region in the mouse genome are colored yellow. Green panels lack evidence from either gene of the pair, within the 1000 bp intergenic region that is orthologous in the mouse.