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Basic Characteristics of Mutations
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Mutation Site
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P225H |
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Mutation Site Sentence
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Other NNRTI-associated low-frequency DRMs identified were K103N, V106M, E138G, E138K, Y181C, Y188C, Y188H, P225H, and M230I at frequencies of 1.01% and 7.7%, respectively. |
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Mutation 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 |
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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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Y |
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Treatment
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NNRTI |
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Location
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Botswana |
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Literature Information
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PMID
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35838991
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Title
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Low-frequency HIV-1 drug resistance mutations in antiretroviral naive individuals in Botswana
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Author
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Maruapula D,Seatla KK,Morerinyane O,Molebatsi K,Giandhari J,de Oliveira T,Musonda RM,Leteane M,Mpoloka SW,Rowley CF,Moyo S,Gaseitsiwe S
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Journal
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Medicine
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Journal Info
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2022 Jul 15;101(28):e29577
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Abstract
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BACKGROUND: Individuals living with human immunodeficiency virus (HIV) who experience virological failure (VF) after combination antiretroviral therapy (cART) initiation may have had low-frequency drug resistance mutations (DRMs) at cART initiation. There are no data on low-frequency DRMs among cART-naive HIV-positive individuals in Botswana. METHODS: We evaluated the prevalence of low-frequency DRMs among cART-naive individuals previously sequenced using Sanger sequencing. The generated pol amplicons were sequenced by next-generation sequencing. RESULTS: We observed low-frequency DRMs (detected at <20% in 33/103 (32%) of the successfully sequenced individuals, of whom four also had mutations detected at >20%. K65R was the most common low-frequency DRM detected in 8 individuals. Eighty-two of the 103 individuals had follow-up viral load data while on cART. Twenty-seven of the 82 individuals harbored low-frequency DRMs. Only 12 of 82 individuals experienced VF. The following low-frequency DRMs were observed in four individuals experiencing VF: K65R, K103N, V108I, and Y188C. No statistically significant difference was observed in the prevalence of low-frequency DRMs between individuals experiencing VF (4/12) and those not experiencing VF (23/70) (P = .97). However, individuals with non-nucleoside reverse transcriptase inhibitors-associated low-frequency DRMs were 2.68 times more likely to experience VF (odds ratio, 2.68; 95% confidential interval, 0.4-13.9) compared with those without (P = .22). CONCLUSION: Next-generation sequencing was able to detect low-frequency DRMs in this cohort in Botswana, but these DRMs did not contribute significantly to VF.
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Sequence Data
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-
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