Direct sequencing of affinity‐captured amplified human DNA application to the detection of apolipoprotein E polymorphism
- 12 November 1989
- journal article
- Published by Wiley in FEBS Letters
- Vol. 258 (1), 71-74
- https://doi.org/10.1016/0014-5793(89)81618-7
Abstract
We describe a method for the direct sequencing of DNA amplified by the polymerase chain reaction (PCR). Biotin is introduced into one strand of the amplified DNA using a 5'‐biotinylated PCR primer. The synthezised fragment is captured on an avidin‐matrix and rendered single stranded, whereafter the nucleotide sequence of the immobilized strand is determined by the chain termination method. The method involves few and simple operations and is thus applicable to the analysis of human genes for routine diagnostic purposes. Here we applied the method for determination of the three‐allelic polymorphism of the apolipoprotein E (apo E) gene. We were able to correctly identify the alleles in both homozygous and heterozygous samples.Keywords
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