Expression of mouse homologues of human CTA genes whose expression is same or lower in cancer cell lines than in the corresponding normal tissues. The relative expression levels of CTA genes in liver (A), bladder (B), colon (C), ovary (D), lung (E), and breast (F) cancer cell lines and in the respective normal tissues are shown. The expression in normal tissues was set as 1.0. Expression was determined by RT-qPCR using the dynamic arrays on the BioMark system.