Figure 3

Hierarchical clustering analysis of colorectal tissue samples based on the TF genes found in two of the three sets shown in Figure  1 . (Pearson correlation, Ward distance). The 34 tissue samples represented on the x-axis include 17 normal mucosal samples and 17 adenomas. Each transcript probe set plotted on the y-axis is color-coded to reflect expression levels of the TF genes relative to their median expression levels across the entire tissue-sample set (red: high; green: low). Two hundred fifty-two of the 261 TF genes listed in Additional file 8: Table S8 are reported here: the other 9 (i.e., the last 9 in Additional file 8: Table S8) were not among the 35,285 genes represented on the Affymetrix Exon 1.0 microarray platform, but they were considered in networks generated with the MetaCore TF analysis.