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Basic Characteristics of Mutations
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Mutation Site
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T215Y |
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Mutation Site Sentence
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For the NRTI class, the most frequent resistance mutations were M184V (2.7%; 2/73) and T215Y (1.4%; 1/73) (Figure 4). |
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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 G |
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Viral Reference
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B-HXB2-PRT_ 2253–3700
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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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NRTI |
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Location
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Cabo Verde |
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Literature Information
|
|
PMID
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39772259
|
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Title
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Genetic Diversity and Antiretroviral Resistance in HIV-1-Infected Patients Newly Diagnosed in Cabo Verde
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Author
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Leal SDV,Pimentel V,Goncalves P,Monteiro de Pina Araujo II,Parreira R,Taveira N,Pingarilho M,Abecasis AB
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Journal
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Viruses
|
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Journal Info
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2024 Dec 20;16(12):1953
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Abstract
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The high genetic variability of HIV-1 and the emergence of transmitted drug resistance (TDR) can impact treatment efficacy. In this study, we investigated the prevalent HIV-1 genotypes and drug-resistance-associated mutations in drug-naive HIV-1 individuals in Cabo Verde. The study, conducted between 2018 and 2019, included drug-naive HIV-1 individuals from the Sao Vicente, Boa Vista, Fogo, and Santiago islands. The HIV-1 pol gene was sequenced using Sanger sequencing. TDR was identified using the Stanford Calibrated Population Resistance tool, and resistance levels to different drugs were interpreted with the Stanford HIV database. The genetic diversity of HIV-1 was determined through phylogenetic analysis, and epidemiological and behavioural data were collected via questionnaires. Of the 73 participants, the majority were male (52.1%). The CRF02_AG recombinant form predominated (41.1%), followed by subtype G (37.0%). The overall prevalence of TDR was 9.6%. Nucleoside Reverse Transcriptase Inhibitor (NRTI) mutations occurred in 2.7% of individuals, while Non-Nucleoside Reverse Transcriptase Inhibitor (NNRTI) mutations occurred in 9.6%. The most prevalent mutations were K103N (5.5%) and M184V (2.7%). No protease- or integrase-associated mutations were found. The high levels of resistance to NNRTIs found demonstrate the need for surveillance of resistance mutations to ensure the efficacy and durability of the current therapeutic regimen, which includes Dolutegravir.
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Sequence Data
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-
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