ORC2 and nonpapillary renal cell carcinoma: The results showed that ORC1 (Fig. 2G, AUC=0.8150, P<0.0001), ORC2 (Fig. 2H, AUC=0.7339, P<0.0001), ORC4 (Fig. 2J, AUC=0.8165, P<0.0001), ORC5 (Fig. 2K, AUC=0.6309, P=0.0003081), and ORC6 (Fig. 2L, AUC=0.88270, P<0.0001) could effectively distinguish ccRCC patients.