Expression of CT46/HORMAD1 in tumor cell lines and specimens. The expression level was determined by real-time RT-PCR and was expressed as a percentage of the testicular expression level. Each open circle represents one sample. The melanoma, small cell lung cancer (SCLC), and neuroblastoma samples were cell lines, whereas RNA from primary tumor specimens was used for the non-small cell lung cancer (NSCLC), breast cancer, bladder cancer, esophageal cancer, endometrial cancer, and colon cancer samples.