MCM2 and nonpapillary renal cell carcinoma: The results showed that the expression level of VEGFA (P = 0.4946), MCM2 (P = 0.5249), MCM7 (P = 0.092), SMC4 (P = 0.856), SLC2A1 (P = 0.209), and MCM5 (P = 0.303) was not related with the overall survival of ccRCC patients.