SLC6A19 and nonpapillary renal cell carcinoma: The results showed that the protein expression levels of DOCK3, G6PC, KIF5A, LYPD6, NAV3, PEX5L, SLC13A1, SLC6A19, and TFAP2A were higher in normal renal tissues than that in ccRCC tissues, while the protein expression levels of ONECUT2 and TRIM10 were not detected (Figure 4).