Figure 3
From: Position specific variation in the rate of evolution in transcription factor binding sites
Association between information profile and rate of evolution in characterized binding sites from SCPD. A–D. Representative plots of information content and substitutions per site reveal a correspondence between positions of high information content and slower rates of evolution. Open symbols represent information content and filled symbols the number of substitutions per site (estimated by maximum parsimony). Consensus letters are included below the appropriate positions in the motif.