GADD45GIP1 and nonpapillary renal cell carcinoma: Genes negatively correlated with MATR3, including GADD45GIP1, MRPL23 (RPL23L), MRPL41, MRPS15, RPS15, NDUFS8, C19orf53, BLOC1S1, and SERF2 were all significantly associated with poor OS when overexpressed in ccRCC (Figure S4).