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. Author manuscript; available in PMC: 2014 Oct 3.
Published in final edited form as: Ann Biomed Eng. 2007 Mar 22;35(6):1053–1067. doi: 10.1007/s10439-007-9268-z

FIGURE 5.

FIGURE 5

The parameters used to fit the exponential distribution vs. the cluster population. This linear trend further reinforces our contention in our belief that the CDF representing the number of times a transcription factor is present amongst a set of genes is governed only by the length of sequence analyzed. Note that in both the cases, the parameters show a good linear fit. This suggests that phylogenetic footprinting in the Rat/human case has not selected for sequences in the promoter region that show a greater number of correct promoter regions.