Simple detection of large InDeLS by DHPLC: the ACE gene as a model

Insertion-deletion polymorphism (InDeL) is the second most frequent type of genetic variation in the human genome. for the detection of large InDeLs, researchers usually resort to either PCR gel analysis or RFLP, but these are time consuming and dependent on human interpretation. Therefore, a more e...

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Access type:openAccess
Publication Date:2008
Main Author: Koyama, Renata Guedes [UNIFESP]
Other Authors: Castro, Rosa M. R. P. S. [UNIFESP], De Mello, Marco Tulio [UNIFESP], Tufik, Sergio [UNIFESP], Pedrazzoli, Mario [UNIFESP]
Document type: Article
Language:eng
Published: Hindawi Publishing Corporation
Online Access:http://repositorio.unifesp.br/handle/11600/30240
http://dx.doi.org/10.1155/2008/562183
Citation:Journal of Biomedicine and Biotechnology. New York: Hindawi Publishing Corporation, 5 p., 2008.
English abstract:Insertion-deletion polymorphism (InDeL) is the second most frequent type of genetic variation in the human genome. for the detection of large InDeLs, researchers usually resort to either PCR gel analysis or RFLP, but these are time consuming and dependent on human interpretation. Therefore, a more efficient method for genotyping this kind of genetic variation is needed. in this report, we describe a method that can detect large InDeLs by DHPLC (denaturating high-performance liquid chromatography) using the angiotensin-converting enzyme (ACE) gene I/D polymorphism as a model. the InDeL targeted in this study is characterized by a 288 bp Alu element insertion (I). We used DHPLC at nondenaturating conditions to analyze the PCR product with a flow through the chromatographic column under two different gradients based on the differences between D and I sequences. the analysis described is quick and easy, making this technique a suitable and e. cient means for DHPLC users to screen InDeLs in genetic epidemiological studies. Copyright (C) 2008 Renata Guedes Koyama et al.