Heatmap of expression values of genes in the six modules. Heatmap of expression values of genes in the six modules identified in the network shown in Figure 3. For each figure, rows correspond to genes and columns correspond to samples in heatmaps. Expression values are logarithm of ratio value using base 2. The first column in front of each heat map is the t-value for each gene, and the color of the t-value represents whether the gene is up-regulated (red) or down-regulated (green). For each heatmap, the expression profile for targets and regulators are illustrated separately. Only expression for regulators listed in Table 1 is illustrated.