Finally, a group of three renal cancer-specific genes, ATAD2, SLC13A1 and DOC2A, seem to have lost their renal cancer-specific expression in all samples (all the samples are metastases), but the level of divergence from the renal cancer-specific expression seems to be stable, independent of the sample's overall similarity to renal cancer. Here, DOC2A is linked to renal carcinoma.