A genotyping method for VKORC1 1173C > T by Pyrosequencing technology.
Scand J Clin Lab Invest
; 68(5): 427-30, 2008.
Article
em En
| MEDLINE
| ID: mdl-19172700
ABSTRACT
Vitamin K epoxide reductase complex subunit 1 (VKORC1) is the site of inhibition by warfarin and other antivitamin K drugs during oral anticoagulant therapy. The SNP rs9934438 in intron 1 of VKORC1 (c.173+1000C > T or 1173C > T) discriminating the VKORC1*2 haplotype is associated with low warfarin dose requirement and unstable prothrombin time - international normalized ratio. To genotype this SNP, we have developed a rapid method using Pyrosequencing technology. The proposed method takes a post-PCR sample preparation of less than 1 h and a DNA sequencing time of less than 15 min to genotype 96 samples. The current method was compared with a dHPLC method that we reported previously. Genotype frequencies at VKORC1 1173C>T for our Swedish population were 38% wild-type, 40% heterozygote and 22% homozygote. The frequency of the T-allele was 0.42, which exactly matches the frequency previously reported for Germans. The current method can be used to determine whether patients initiating warfarin therapy are carriers of SNP 1173 C>T that is strongly associated with low warfarin dose requirement.
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Base de dados:
MEDLINE
Assunto principal:
Análise Mutacional de DNA
/
Polimorfismo de Nucleotídeo Único
/
Oxigenases de Função Mista
Limite:
Humans
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article