BACKGROUND: X-ray repair cross-complementing group 3 (XRCC3) plays a crucial role in mammalian DNA repair processes. The polymorphism of XRCC3, rs861539 (Thr > Met at codon 241), is common in populations worldwide. This study analyzed the relationship between this functional single nucleotide polymorphism and systemic lupus erythematosus (SLE) in the Han Chinese population in Taiwan (HC-TW). METHODS: Genotyping was performed using polymerase chain reaction restriction fragment length polymorphism on 163 SLE patients and 191 healthy participants in the control group. RESULTS: The data showed that the genotype frequency at codon 241 did not differ significantly between the SLE patients and the healthy participants in the control group; however, the allele frequency analysis indicated a significant difference between these groups. In addition, we used the genotype and allele frequencies of 191 healthy HC-TW participants for comparison with HapMap populations. The results indicated a significant difference of XRCC3 Thr241Met allele and genotype frequencies between the HC-TW population and HapMap populations, except for the other Han Chinese populations. A prior study showed that Thr241 > Met substitution in XRCC3 protein was positive as damaging and functional consequences as well. CONCLUSION: This is the first study to demonstrate the difference of XRCC3 Thr241 > Met variant between the HC-TW population and HapMap population.
BACKGROUND:X-ray repair cross-complementing group 3 (XRCC3) plays a crucial role in mammalian DNA repair processes. The polymorphism of XRCC3, rs861539 (Thr > Met at codon 241), is common in populations worldwide. This study analyzed the relationship between this functional single nucleotide polymorphism and systemic lupus erythematosus (SLE) in the Han Chinese population in Taiwan (HC-TW). METHODS: Genotyping was performed using polymerase chain reaction restriction fragment length polymorphism on 163 SLEpatients and 191 healthy participants in the control group. RESULTS: The data showed that the genotype frequency at codon 241 did not differ significantly between the SLEpatients and the healthy participants in the control group; however, the allele frequency analysis indicated a significant difference between these groups. In addition, we used the genotype and allele frequencies of 191 healthy HC-TW participants for comparison with HapMap populations. The results indicated a significant difference of XRCC3 Thr241Met allele and genotype frequencies between the HC-TW population and HapMap populations, except for the other Han Chinese populations. A prior study showed that Thr241 > Met substitution in XRCC3 protein was positive as damaging and functional consequences as well. CONCLUSION: This is the first study to demonstrate the difference of XRCC3Thr241 > Met variant between the HC-TW population and HapMap population.
Authors: Bettina Kuschel; Annika Auranen; Simon McBride; Karen L Novik; Antonis Antoniou; Julian M Lipscombe; Nicholas E Day; Douglas F Easton; Bruce A J Ponder; Paul D P Pharoah; Alison Dunning Journal: Hum Mol Genet Date: 2002-06-01 Impact factor: 6.150
Authors: Nicklas R Jacobsen; Ole Raaschou-Nielsen; Bjørn Nexø; Håkan Wallin; Kim Overvad; Anne Tjønneland; Ulla Vogel Journal: Cancer Lett Date: 2004-09-15 Impact factor: 8.679
Authors: Christine G Parks; Glinda S Cooper; Lori L Hudson; Mary Anne Dooley; Edward L Treadwell; E W St Clair; Gary S Gilkeson; Janardan P Pandey Journal: Arthritis Rheum Date: 2005-04
Authors: S L Winsey; N A Haldar; H P Marsh; M Bunce; S E Marshall; A L Harris; F Wojnarowska; K I Welsh Journal: Cancer Res Date: 2000-10-15 Impact factor: 12.701