Abstract
Mutation of primer site for genotyping by polymerase chain reaction (PCR) may cause allele dropout and other genotyping failures. Primary hyperoxaluria type 2 (PH2) is a rare inherited disease caused by overproduction of endogenous oxalate due to mutations in the glyoxylate/hydroxypyruvate reductase (GRHPR) gene. Here, to avoid allele dropout and primer annealing to multiple sites, and given the discrepancy in intron length between GRHPR gene data, we updated the primers used in the sequence assay of the GRHPR gene. These redesigned primers show potential in reducing detection failure of GRHPR mutations. In addition, we performed a single nucleotide polymorphism (SNP) linkage analysis of the GRHPR gene using direct sequencing with PCR amplification of specific alleles (DS-PASA). Using this technique, we sequenced four common SNPs between intron E and exon 6, which show linkage disequilibrium (LD) consisting of three types of haplotypes, similar to data from the HapMap SNP database.
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Acknowledgments
The present study was supported in part by a Grant-in-Aid for Scientific Research (C) 20591878 and Young Scientists (B) 19791105 from The Ministry of Education, Culture, Sports, Science and Technology of Japan.
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Takaoka, N., Takayama, T., Miyazaki, M. et al. Modification of primers for GRHPR genotyping: avoiding allele dropout by single nucleotide polymorphisms and homology sequence. Urol Res 36, 297–302 (2008). https://doi.org/10.1007/s00240-008-0159-z
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DOI: https://doi.org/10.1007/s00240-008-0159-z