SNORD12B and nonpapillary renal cell carcinoma: On the other hand, snoRNAs exist methylation site and have poor prognosis in KIRC, so is snoRNA methylation correlated with better survival?19 In this study, we found high expression of risky factors SNORD12B and SNORD93 was negatively correlated with methylation sites cg18598146, cg04907244 and cg22407942, respectively, and these methylation sites were associated with better survival in ccRCC.