Additional file 4.
Supplemental figure 4. Figure S4. Distributions of expression levels of genes selected for comparison of broad and peak promoters associated with similar downstream gene expression. The box plots represent the distributions of the microarray intensities of the gene sets that were selected from among those associated with broad and peak promoters and that had similar expression levels (from 250 to 750).
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Nozaki et al. BMC Genomics 2011 12:416 doi:10.1186/1471-2164-12-416