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A Mismatch EndoNuclease Array-Based Methodology (MENA) for Identifying Known SNPs or Novel Point Mutations
Journal article   Open access   Peer reviewed

A Mismatch EndoNuclease Array-Based Methodology (MENA) for Identifying Known SNPs or Novel Point Mutations

Josep M Comeron, Jordan Reed, Matthew Christie, Julia S Jacobs, Jason Dierdorff, Daniel F Eberl and J. Robert Manak
Microarrays, Vol.5(2), pp.7-7
2016
DOI: 10.3390/microarrays5020007
PMCID: PMC5003483
PMID: 27600073
url
https://doi.org/10.3390/microarrays5020007View
Published (Version of record) Open Access

Abstract

Accurate and rapid identification or confirmation of single nucleotide polymorphisms (SNPs), point mutations and other human genomic variation facilitates understanding the genetic basis of disease. We have developed a new methodology (called MENA (Mismatch EndoNuclease Array)) pairing DNA mismatch endonuclease enzymology with tiling microarray hybridization in order to genotype both known point mutations (such as SNPs) as well as identify previously undiscovered point mutations and small indels. We show that our assay can rapidly genotype known SNPs in a human genomic DNA sample with 99% accuracy, in addition to identifying novel point mutations and small indels with a false discovery rate as low as 10%. Our technology provides a platform for a variety of applications, including: (1) genotyping known SNPs as well as confirming newly discovered SNPs from whole genome sequencing analyses; (2) identifying novel point mutations and indels in any genomic region from any organism for which genome sequence information is available; and (3) screening panels of genes associated with particular diseases and disorders in patient samples to identify causative mutations. As a proof of principle for using MENA to discover novel mutations, we report identification of a novel allele of the beethoven ( btv ) gene in Drosophila , which encodes a ciliary cytoplasmic dynein motor protein important for auditory mechanosensation.
endonuclease genetic variation microarray SNP detection disease mutation mismatch

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