In contrast to BCC and SCC (Figure S1A,C), melanoma (Figure S1B,D) biopsies proved to be characterized by transcriptional repression of PRR11 (Figure S1A,B) and CAMK1D (Figure S1C,D) genes, as indicated by the amplification profiles of the expected 247 and 192 bp PCR products, respectively. The gene discussed is CAMK1D; the disease is skin basal cell carcinoma.