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High-resolution DNA melting analysis: advancements and limitations

Open access
Wittwer, Carl T.·2009·Human Mutation

Abstract

Recent advances in fluorescent dyes, methods, instruments and software for DNA melting analysis have created versatile new tools for variant scanning and genotyping. High resolution melting analysis (HRM or HRMA) is faster, simpler, and less expensive than alternative approaches requiring separations or labeled probes. With the addition of a saturating dye before PCR followed by rapid melting analysis of the PCR products, the sensitivity of heterozygote scanning approaches 100%. Specificity can be increased by identifying common polymorphisms with small amplicon melting, unlabeled probes or snapback primers to decrease the sequencing burden. However, some homozygotes require mixing for identification. Furthermore, different heterozygotes may produce melting curves so similar to each other that, although they clearly vary from homozygous variants, they are not differentiated from each other. Nevertheless, the experimental return for minimal effort is great. This focus issue of Human Mutation includes a concise, timely review on high resolution melting, a comparison to denaturing gradient gel electrophoresis, integration with qPCR for copy number assessment, combined amplicon scanning and unlabeled probe genotyping from a single melting curve, and applications to the mitochondrial genome and to BRCA1.

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Metadata

Authors
Wittwer, C. T.
Venue
Human Mutation
Published
2009-06
Volume
30
Issue
6
Pages
857-859
ISSN
  • 1059-7794 (ISSN-L)
  • 1098-1004
OpenAlex
W2036450516
Cited by
468
References
14
FWCI
9.55
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: High-resolution DNA melting analysis: advancements and limitations. https://app.cochat.ai/papers/10.1002/humu.20951
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Wittwer, C. T. (2009). High-resolution DNA melting analysis: advancements and limitations. Human Mutation. https://doi.org/10.1002/humu.20951

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