Fig. 4. Distributions of DTC migration genes by functional class. Functional classes for C. elegans genes as described previously (Kamath et al., 2003) are listed on the right. (A) The relative percentages for each functional class of genes that showed any RNAi phenotype are indicated. (B) Percentages for each functional class of those genes resulting in DTC phenotypes are shown. The functional class `Nucleic acid binding' includes the categories RNA binding, DNA binding, NA binding and Chromatin. `ECM' (extracellular matrix) includes collagens, ppn-1 and dig-1.