Improved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.

Sequence-specific oligonucleotide hybridization (SSOH, 'dot-blotting') is a widely employed method of typing single nucleotide polymorphisms (SNPs), but it is often compromised by lack of allelic differentiation. We describe a novel improvement to SSOH that incorporates an additional misma...

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Main Authors: Burgner, D, D'Amato, M, Kwiatkowski, D, Loakes, D
Format: Journal article
Language:English
Published: 2004
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author Burgner, D
D'Amato, M
Kwiatkowski, D
Loakes, D
author_facet Burgner, D
D'Amato, M
Kwiatkowski, D
Loakes, D
author_sort Burgner, D
collection OXFORD
description Sequence-specific oligonucleotide hybridization (SSOH, 'dot-blotting') is a widely employed method of typing single nucleotide polymorphisms (SNPs), but it is often compromised by lack of allelic differentiation. We describe a novel improvement to SSOH that incorporates an additional mismatch into the oligonucleotide probe using the universal base analogue 3-nitropyrrole. This method greatly increases allelic differentiation compared to standard SSOH where oligonucleotides contain only SNP-defining base changes. Moreover, stringency of the hybridisation is predictably maintained over a wide range of temperatures, which can be calculated empirically, thus facilitating the genotyping of multiple SNPs using similar conditions. This improved method increases the usefulness of hybridisation-based methods of rapid genotyping of SNPs and may have implications for array methodologies.
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spelling oxford-uuid:97684664-9fff-4c57-ac88-04da3815b5882022-03-26T23:59:21ZImproved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:97684664-9fff-4c57-ac88-04da3815b588EnglishSymplectic Elements at Oxford2004Burgner, DD'Amato, MKwiatkowski, DLoakes, DSequence-specific oligonucleotide hybridization (SSOH, 'dot-blotting') is a widely employed method of typing single nucleotide polymorphisms (SNPs), but it is often compromised by lack of allelic differentiation. We describe a novel improvement to SSOH that incorporates an additional mismatch into the oligonucleotide probe using the universal base analogue 3-nitropyrrole. This method greatly increases allelic differentiation compared to standard SSOH where oligonucleotides contain only SNP-defining base changes. Moreover, stringency of the hybridisation is predictably maintained over a wide range of temperatures, which can be calculated empirically, thus facilitating the genotyping of multiple SNPs using similar conditions. This improved method increases the usefulness of hybridisation-based methods of rapid genotyping of SNPs and may have implications for array methodologies.
spellingShingle Burgner, D
D'Amato, M
Kwiatkowski, D
Loakes, D
Improved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.
title Improved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.
title_full Improved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.
title_fullStr Improved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.
title_full_unstemmed Improved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.
title_short Improved allelic differentiation using sequence-specific oligonucleotide hybridization incorporating an additional base-analogue mismatch.
title_sort improved allelic differentiation using sequence specific oligonucleotide hybridization incorporating an additional base analogue mismatch
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AT kwiatkowskid improvedallelicdifferentiationusingsequencespecificoligonucleotidehybridizationincorporatinganadditionalbaseanaloguemismatch
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