FIG. 4.

Frequency of appearance of E2F6 TFBS within upstream regions of genes relative to their transcription initiation sites. Bar graph indicates the occurrence rate of E2F6 TFBS for the following categories: RSAT, the actual frequency that the E2F6 TFBS occurs at least once within the proximal promoter regions of genes (31 113 genes) in the mouse genome; meiosis-specific, the actual frequency that the E2F6 TFBS occurs at least once within a population of meiosis-specific genes (those listed in Table 1). The x-axis indicates the location of the E2F6 TFBS to be within 100 bp, 200 bp, 500 bp, or 1000 bp upstream of the transcription initiation site; the y-axis denotes the percentage of genes from each category (RSAT or Meiosis-specific) that have at least one E2F6 TFBS within a given upstream region.