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Rapid determination of apolipoprotein E genotype using a heteroduplex generator

Bolla, MK; Wood, N; Humphries, SE; (1999) Rapid determination of apolipoprotein E genotype using a heteroduplex generator. J LIPID RES , 40 (12) 2340 - 2345. Gold open access

Abstract

The apoE gene exhibits two common polymorphisms that have been associated with both coronary artery disease and Alzheimer's disease. The polymorphisms create the three allelic isoforms E2, E3, and E4 which are encoded by Cys-Cys, Cys-Arg and Arg-Arg at amino acid positions 112 and 158, respectively. Numerous methods have been described to identify these three apoE alleles although there are disadvantages and ambiguities associated with all of them. Here we describe a method by which the two common apoE polymorphism can be identified simultaneously. The method involves PCR of the region containing the two polymorphic sites, followed by hybridization of this PCR product to a synthetic molecule called a universal heteroduplex generator (UHG). The UHG is used to induce heteroduplex formation which is visualized on a non-denaturing mini-gel using ethidium bromide staining; This technique which can also identify other rare mutations in the amplified region of DNA under investigation, is an unequivocal method of genotyping and is simpler and faster than many methods, including using restriction enzyme digestion.-Bolla, M. Il, N. Wood, and S. E. Humphries. Rapid determination of apolipoprotein E genotype using a heteroduplex generator.

Type:Article
Title:Rapid determination of apolipoprotein E genotype using a heteroduplex generator
Open access status:An open access publication
Publisher version:http://www.jlr.org/papbyrecent.shtml
Keywords:apoE, coronary artery disease, Alzheimer's disease, heteroduplex analysis, universal heteroduplex generator, POLYMERASE CHAIN-REACTION, E POLYMORPHISM, MYOCARDIAL-INFARCTION, GEL-ELECTROPHORESIS, ALZHEIMERS-DISEASE, TYPE-4 ALLELE, E LOCUS, GENE, RESTRICTION, DNA
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science

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