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Genetic relationships determined by a DNA heteroduplex mobility assay: analysis of HIV-1 env genes

Delwart, E., Shpaer, E., Louwagie, J, McCutchan, F., Grez, M, Rubsamen-Waigmann, H, Mullins, J.·1993·Science

Abstract

The genetic diversity of human immunodeficiency virus (HIV) is a major concern thought to impact on immunologic escape and eventual vaccine efficacy. Here, simple and rapid methods are described for the detection and estimation of genetic divergence between HIV strains on the basis of the observation that DNA heteroduplexes formed between related sequences have a reduced mobility in polyacrylamide gels proportional to their degree of divergence. Reliable phylogenetic subtypes were assigned for HIV-1 strains from around the world. Relationships between viruses were closest when derived from the same or epidemiologically linked individuals. When derived from epidemiologically unlinked individuals, the relationships between viruses in a given geographic region correlated with the length of time HIV-1 had been detected in the population and the number of strains initiating widespread infection. Heteroduplex mobility analysis thus provides a tool to expedite epidemiological investigations by assisting in the classification of HIV and is readily applicable to the screening and characterization of other infectious agents and cellular genes.

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Metadata

Authors
Delwart, E., Shpaer, E., Louwagie, J., McCutchan, F., Grez, M., Rubsamen-Waigmann, H., & Mullins, J.
Venue
Science
Published
1993-11-19
Volume
262
Issue
5137
Pages
1257-1261
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2025948021
Cited by
757
References
0
FWCI
11.56
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Genetic relationships determined by a DNA heteroduplex mobility assay: analysis of HIV-1 env genes. https://app.cochat.ai/papers/10.1126/science.8235655
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Delwart, E., Shpaer, E., Louwagie, J., McCutchan, F., Grez, M., Rubsamen-Waigmann, H., & Mullins, J. (1993). Genetic relationships determined by a DNA heteroduplex mobility assay: analysis of HIV-1 env genes. Science. https://doi.org/10.1126/science.8235655

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.