By using RNA sequencing (RNA-seq) data from the human The Cancer Genome Atlas (TCGA) melanoma cohort and GEPIA (Gene Expression Profiling Interactive Analysis)24, we found that the mRNA levels of ZDHHC13 positively correlated with those of well-known targets downstream from MC1R signaling (Fig. 1a, b), including MITF and DCT25. The gene discussed is MC1R; the disease is melanoma.