The AA, AG, and GG frequencies of the DUT SNP rs3784619 in the controls were 53.8%, 38.4% and 7.8%, respectively, 48.0%, 36.0% and 16.0%, respectively, in the CIN III group, and 45.3%, 34.0% and 20.8%, respectively, in the CSCC group. This evidence concerns the gene DUT and skin squamous cell carcinoma.