In order to further explore the correlation between the expression of NUDT1 and the clinicopathological features of ccRCC, we extracted and collated the clinicopathological features of patients from TCGA-KIRC cohort (Table 1); the gender, age, grade, clinical stage, and T stage, N stage, and M stage were included. This evidence concerns the gene NUDT1 and nonpapillary renal cell carcinoma.