(41) reported 20 susceptibility genes for melanoma, p16INK4A and p14ARF (located at the same locus, CDKN2A), CDK4, BAP1, RAD51B, POLE, TERT, POT1, etc. Surprisingly, the CPGs identified in our PMMC study were ATRX, BPTF, NTRK1, NCOR2, etc., which are different from melanoma susceptibility genes. This evidence concerns the gene CDK4 and melanoma.