PRDM9 was readily detectable in the cancer cells, but not in the HPrSM cells (Fig. 1C) demonstrating that the expression of the PRDM9 CT gene results in protein production, leading to the possibility that the de-repression of the PRDM9 gene generates a protein which could be antigenic and thus be of clinical and oncogenic importance. This evidence concerns the gene PRDM9 and cancer.