HIF1A and nonpapillary renal cell carcinoma: Of these 26 genes, 14 were also under-expressed in ccRCC compared to normal kidney tissue, and all these 14 genes had a stronger correlation between their respective copy numbers and gene expression than HIF1A, indicating that their preserved alleles did not compensate for the genetic loss as much as the preserved allele for HIF1A in 14q deleted RCC (mean CNV- expression correlation for the 14 genes was 0.51, compared with 0.27 for HIF1A).