Partial sequencing chromatograms of the VHL gene containing rs779805 in reverse direction from tumor tissues. The rs779805 is represented by a rectangular frame. (A), (C), and (E) represent examples of loss of heterozygosity (LOH) of the A allele at rs779805 of VHL gene in RCC patients (#1, #3, and #6 in Table 1). (B) and (D) represent loss of the G allele (#2 and #4). (F) is a heterozygote with two almost equal bands (#11).