p53 Polymorphisms and Haplotypes in Different Ethnic Groups
作者:
A. Själander,
R. Birgander,
A. Kivelä,
G. Beckman,
期刊:
Human Heredity
(Karger Available online 1995)
卷期:
Volume 45,
issue 3
页码: 144-149
ISSN:0001-5652
年代: 1995
DOI:10.1159/000154275
出版商: S. Karger AG
关键词: DNA polymorphism;Extended haplotypes;Ethnic heterogeneity;Linkage disequilibrium;p53
数据来源: Karger
摘要:
Three different p53 polymorphisms (a codon 72 BstUI RFLP, a 16-bp duplication in intron 3 and an Mspl RFLP in intron 6) and haplotype combinations were studied in three northern European populations, viz. Finns, Swedes and Swedish Saamis. Significant ethnic differences were found in the codon 72 and 16-bp polymorphisms. The three polymorphisms were in strong linkage disequilibria, all of which were highly significant (p& <1 × 10-18), and ethnic differences with respect to linkage disequilibria were observed. Estimates of the frequencies of extended haplotypes showed that the most common (‘wild-type’) haplotype in the three populations was 2-1-2, viz, the codon 72 Arg allele linked to absence of the 16-bp duplication and presence of the Mspl site. There were two additional common haplotypes, 1-1-2 and 1-2-1, and five rare haplotypes with a combined frequency of about 0.03. The present results indicate that extended haplotypes would be more informative in studies of population differences and associations between p53 germline mutations and ca
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