The RNA-seq data obtained from the UCSC database showed that the mRNA expression level of STEAP3 was abnormally expressed in 29 types of tumor tissues (The text labels on the x-axis represent the abbreviations of 33 tumors in the TCGA database, of which KIRC represents the ccRCC), and most of the results were consistent with that in the GENT2 database (Fig. 1B). The gene discussed is STEAP3; the disease is nonpapillary renal cell carcinoma.