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Geno2pheno: estimating phenotypic drug resistance from HIV-1 genotypes

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Beerenwinkel, N.·2003·Nucleic Acids Research

Abstract

Therapeutic success of anti-HIV therapies is limited by the development of drug resistant viruses. These genetic variants display complex mutational patterns in their pol gene, which codes for protease and reverse transcriptase, the molecular targets of current antiretroviral therapy. Genotypic resistance testing depends on the ability to interpret such sequence data, whereas phenotypic resistance testing directly measures relative in vitro susceptibility to a drug. From a set of 650 matched genotype-phenotype pairs we construct regression models for the prediction of phenotypic drug resistance from genotypes. Since the range of resistance factors varies considerably between different drugs, two scoring functions are derived from different sets of predicted phenotypes. Firstly, we compare predicted values to those of samples derived from 178 treatment-naive patients and report the relative deviance. Secondly, estimation of the probability density of 2000 predicted phenotypes gives rise to an intrinsic definition of a susceptible and a resistant subpopulation. Thus, for a predicted phenotype, we calculate the probability of membership in the resistant subpopulation. Both scores provide standardized measures of resistance that can be calculated from the genotype and are comparable between drugs. The geno2pheno system makes these genotype interpretations available via the Internet (http://www.genafor.org/).

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Metadata

Authors
Beerenwinkel, N.
Venue
Nucleic Acids Research
Published
2003-07-01
Volume
31
Issue
13
Pages
3850-3855
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W1988215875
Cited by
266
References
8
FWCI
7.95
Type
journal article
Language
en
Open access
bronze

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Beerenwinkel, N. (2003). Geno2pheno: estimating phenotypic drug resistance from HIV-1 genotypes. Nucleic Acids Research. https://doi.org/10.1093/nar/gkg575

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