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Basic Characteristics of Mutations
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Mutation Site
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K65R |
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Mutation Site Sentence
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The mutations assayed were the nucleotides that most frequently encode D30N, I50V, V82A/S/T, I84V, N88D, and L90M in HIV-1 PR and K65R, K103N, Q151M, Y181C, M184V, and T215Y/F in HIV-1 RT. |
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Mutation Level
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Amino acid level |
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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RT |
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Standardized Encoding Gene
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gag-pol:155348
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Genotype/Subtype
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HIV-1 B |
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Viral Reference
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-
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Functional Impact and Mechanisms
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Disease
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HIV Infections
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Immune
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- |
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Target Gene
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-
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Clinical and Epidemiological Correlations
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Clinical Information
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- |
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Treatment
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- |
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Location
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Belgium;Cameroon;China;Honduras;India;South Africa;Thailand |
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Literature Information
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PMID
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18614915
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Title
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Optimization of the oligonucleotide ligation assay, a rapid and inexpensive test for detection of HIV-1 drug resistance mutations, for non-North American variants
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Author
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Beck IA,Crowell C,Kittoe R,Bredell H,Machaba M,Willamson C,Janssens W,Jallow S,van der Groen G,Shao Y,Jacob M,Samuel NM,de Rivera IL,Ngo-Giang-Huong N,Cassol S,Alemnji G,Frenkel LM
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Journal
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Journal of acquired immune deficiency syndromes (1999)
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Journal Info
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2008 Aug 1;48(4):418-27
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Abstract
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OBJECTIVE: We evaluated the feasibility of the oligonucleotide ligation assay (OLA), a specific, sensitive, and economical ligase-based point mutation assay designed to detect HIV-1 drug-resistance mutations at 12 codons of HIV-1 subtype B pol, for potential use in resource-poor settings. METHODS: Specimens from HIV-1-infected individuals collected by 7 international laboratories, including subtypes A, B, C, D, F, G, J, and recombinants AE and AG, were tested by the OLA developed for HIV-1 subtype B. Common polymorphisms that interfered with reactivity of the OLA were identified and modified probes designed and evaluated. RESULTS: 92.5% (2,410) of 2,604 codons in specimens from 217 individuals were successfully genotyped by the subtype B OLA. A high rate (range 8.3%-31.2%) of indeterminate results (negative OLA reaction for both mutant and wild type) was observed for 5 codons. Modified probes at reverse transcriptase codons 151 and 184 and protease codon 90 increased the rate of valid OLA to 96.1%. CONCLUSIONS: The OLA designed for HIV-1 subtype B genotyped most pol codons in non-B subtypes from Asia and Africa but was improved by addition of several modified probes. International laboratories experienced in molecular techniques were able to perform the OLA.
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Sequence Data
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EU248733-EU248811
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