The first 10 mutated genes in ccRCC patients with high KIFscores were VHL, PBRM1, TTN, SETD2, BAP1, MUC16, MTOR, HMCN1, XIRP2, and PTEN, and the first 10 mutated genes in ccRCC patients with low KIFscores were VHL, PBRM1, TTN, SETD2, MTOR, KDM5C, LRP2, MUC16, ANK3, and DNAH9. This evidence concerns the gene XIRP2 and nonpapillary renal cell carcinoma.