To support our data in which increased CYP4A11 expression of RCC cells positively correlated with shorter OS, we downloaded GSE2748 entitled “A molecular classification of papillary renal cell carcinoma” (https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE2748) and analyzed the correlation between CYP4A11 mRNA expression and OS period. The gene discussed is CYP4A11; the disease is papillary renal cell carcinoma.