DPH3 and basal cell carcinoma: Although the luciferase reporter constructs with the −8/−9CC > TT tandem mutation showed statistically significant increased promoter activity for both DPH3 and OXNAD1 orientations in a melanoma cell line, we did not detect a statistically significant difference in the DPH3 and OXNAD1 transcription levels in melanomas and basal cell carcinomas.