Genetic polymorphisms and linkage disequilibrium of sulfotransferase SULT1A1 and SULT1A2 in a Korean population: Comparison of other ethnic groups

Kyoung Ah Kim, Sook Young Lee, Pil Whan Park, Jong Myung Ha, Ji Young Park

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Aims: To determine the allele frequencies of sulfotransferases (SULTs) 1A1 and 1A2 and their linkage disequilibrium in a Korean population and compare them with those of other ethnic groups. Methods: Genotypes of the SULT1A1*1,*2, and*3 and SULT1A2*1,*2, and*3 allelic variants were determined in 234 Korean subjects using polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) methods. Results: Allele frequencies for SULT1A1*1 and*2 were 0.876 [95% confidence interval (CI), 0.843-0.905] and 0.124 (95% CI, 0.096-0.157), respectively. Similarly, those for SULT1A2*1 and*2 were 0.885 (95% CI, 0.852-0.912) and 0.115 (95% CI, 0.088-0.150), respectively. However, no subject with SULT1A1*3 or SULT1A2*3 was detected. These genotype distributions are similar to those of Asian populations including the Chinese and Japanese, but quite different from other ethnic groups such as African-Americans and Caucasians. The expected allelic frequencies of SULT1A1 and SULT1A2 at Hardy-Weinberg equilibrium are quite similar to the observed distributions in the population. SULT1A1*2 and SULT1A2*2, the most common variant alleles of these two genes, are strongly and positively linked in the Korean population (D ′ =0.8919, χ2 =343.24, P=0.0034). Conclusions: SULT1A1*2 and SULT1A2*2 are the major allelic variants in the Korean population, whereas the SULT1A1*3 and SULT1A2*3 alleles were not found. SULT1A1*2 and SULT1A2*2 are strongly linked.

Original languageEnglish
Pages (from-to)743-747
Number of pages5
JournalEuropean Journal of Clinical Pharmacology
Volume61
Issue number10
DOIs
Publication statusPublished - 2005 Nov

Keywords

  • Genetic polymorphism
  • Linkage disequilibrium
  • SULT1A1
  • SULT1A2
  • Sulfotransferase

ASJC Scopus subject areas

  • Pharmacology
  • Pharmacology (medical)

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