QPCR revealed that methylation and/or deletions considerably contribute to inactivation of the majority of examined genes (LRRN1, GORASP1, IQSEC1, FOXP1, GNAI2, FGD5, PLCL2, and ALDH1L1) in ccRCC. This evidence concerns the gene LRRN1 and nonpapillary renal cell carcinoma.