Figure 3

Gene expression of polyadenylation factors. (a) Two-way hierarchical clustering of the U95Av2 data using 21 polyadenylation factors. (b) Two-way hierarchical clustering of the U133A data using 23 polyadenylation factors. See Table 1 for polyadenylation factors in each dataset. Tissues and genes that are consistently clustered together in both datasets are marked by gray lines. (c) Correlation of mRNA expression levels of 21 polyadenylation-related factors across 25 human tissues (upper diagonal, data from U133A; lower diagonal, data from U95Av2). Based on the scale displayed on top of the figure, small squares are colored to represent the extent of correlation between mRNA expression levels of the 21 genes in each pair of human tissues. DRG, dorsal root ganglion.