title: Genetic polymorphisms of XRCC1 (at codons 194 and 399) in Shiraz population (Fars province, southern Iran).
abstract: OBJECTIVE
  Several potential functional polymorphisms in the DNA base excision repair gene X-ray repair cross-complementing group 1 (XRCC1) have been reported. There has been no information on interindividual variability of Arg194Trp and Arg399Gln polymorphisms of XRCC1 in the Iranian population. Due to the association between the polymorphisms of XRCC1 and the risk of some types of cancers, the present study was done.
  
  
  METHODS
  The genetic polymorphisms of XRCC1 were detected by PCR-based method in 707 healthy individuals from Shiraz population, (Fars province, southern Iran).
  
  
  RESULTS
  Considering that there was no statistically significant difference between males and females, the sex groups were pooled. The frequencies of 194Trp and 399Gln alleles were 9.05% and 33.95%, respectively. When both polymorphisms were considered, the linkage-disequilibrium was observed (D' = 0.8986, r(2) = 0.0413, P < 0.00001).
  
  
  CONCLUSIONS
  The present results indicated that the allelic frequencies in Iranian populations showed intermediate frequencies in comparison with European and other Asian countries.
authors.affiliation: Department of Biology, College of Sciences, Shiraz University, Shiraz, 71454, Iran.
authors.forename: Parisa
authors.initials: P
authors.lastname: Mohamadynejad
authors.forename: Mostafa
authors.initials: M
authors.lastname: Saadat
mesh_terms: D000328:Adult; D003062:Codon / Q000235:genetics* / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000235:genetics*; D005260:Female; D020022:Genetic Predisposition to Disease / Q000208:ethnology; D005828:Genetics, Population; D005838:Genotype; D006801:Humans; D007492:Iran; D008297:Male; D011110:Polymorphism, Genetic; D044382:Population Groups / Q000235:genetics; D000076105:X-ray Repair Cross Complementing Protein 1
chemical_list: D003062:Codon; D004268:DNA-Binding Proteins; D000076105:X-ray Repair Cross Complementing Protein 1; C000619371:XRCC1 protein, human