HIV Mutation Detail Information

Virus Mutation HIV Mutation K70K


Basic Characteristics of Mutations
Mutation Site K70K
Mutation Site Sentence Figure 3 Diagrams depicting the HIV-1 ribonucleic acid (RNA) trajectories in two participants who developed dolutegravir resistance. Participant (a) developed intermediate dolutegravir resistance (Stanford score: 50), detected at week 96; clinical information: female, 40 years old, baseline HIV-1 RNA 4.30 log10 copies/mL, baseline CD4 lymphocyte count: 256 cells/μL. Participant (b) developed high-level dolutegravir resistance (Stanford score: 70), detected at week 146; clinical information: Male, 39 years old, baseline HIV-1 RNA 4.30 log10 copies/mL, baseline CD4 lymphocyte count: 175 cells/μL.
Mutation Level Amino acid level
Mutation Type Synonymous substitution
Gene/Protein/Region RT
Standardized Encoding Gene gag-pol:155348
Genotype/Subtype HIV-1
Viral Reference -
Functional Impact and Mechanisms
Disease HIV Infections    
Immune -
Target Gene -
Clinical and Epidemiological Correlations
Clinical Information Y
Treatment NRTI
Location South Africa
Literature Information
PMID 40356938
Title Longer-term virologic outcomes on tenofovir-lamivudine-dolutegravir in second-line ART
Author van Heerden JK,Zhao Y,Keene CM,Griesel R,Omar Z,Goliath R,Delaney K,van Zyl G,Maartens G,Meintjes G
Journal Southern African journal of HIV medicine
Journal Info 2025 Apr 30;26(1):1677
Abstract BACKGROUND: Dolutegravir in second-line antiretroviral therapy (ART) is more effective with recycled tenofovir than switching to zidovudine. However, dolutegravir resistance is more frequent in second-line compared to first-line ART. OBJECTIVES: We report long-term virologic outcomes from a clinical trial. METHOD: AntiRetroviral Therapy In Second-line: investigating Tenofovir-lamivudine-dolutegravir (ARTIST) was a randomised, double-blind, phase II clinical trial. Eligible participants had two consecutive HIV-1 RNA >/= 1000 copies/mL on first-line ART, mostly tenofovir-emtricitabine-efavirenz. Participants were switched to tenofovir-lamivudine-dolutegravir (TLD) with lead-in 50 mg dolutegravir twice daily in stage one (n = 62), and randomised to TLD with additional lead-in 50 mg dolutegravir or placebo for the first 14 days in stage two (n = 130). We present results up to 158 weeks, combining stages one and two. RESULTS: We enrolled 192 participants: 127/176 (72%) had resistance (Stanford score >/= 15) to both tenofovir and lamivudine. At week 48, 151/186 (81%; 95% confidence interval [CI] 75%, 87%) had HIV-1 RNA < 50 copies/mL. Of 127 participants with follow-up through week 158, 78% (95% CI 70%, 85%) maintained HIV-1 RNA < 50 copies/mL, 11% had HIV-1 RNA 50-999 copies/mL, and 11% had HIV-1 RNA >/= 1000 copies/mL. Twenty-nine participants met criteria for resistance testing: one developed intermediate-level dolutegravir resistance (G118R mutation) at week 96, and one had high-level dolutegravir resistance (E138K, G118R, G163R, T66A mutations) detected at week 146. CONCLUSION: Among adults switching to TLD with detectable HIV-1 RNA and substantial tenofovir and lamivudine resistance, a high proportion maintained virologic suppression up to 158 weeks. Emergent dolutegravir resistance occurred in ~1% of participants after 2-3 years on second-line TLD.
Sequence Data -
Mutation Information
Note
Basic Characteristics of Mutations
  • Mutation Site: The specific location in a gene or protein sequence where a change occurs.
  • Mutation Level: The level at which a mutation occurs, including the nucleotide or amino acid level.
  • Mutation Type: The nature of the mutation, such as missense mutation, nonsense mutation, synonymous mutation, etc.
  • Gene/Protein/Region: Refers to the specific region of the virus where the mutation occurs. Including viral genes, viral proteins, or a specific viral genome region. If the article does not specifically indicate the relationship between the mutation and its correspondence, the main
  • Gene/Protein/Region studied in the article is marked.
  • Genotype/Subtype: Refers to the viral genotype or subtype where the mutation occurs. If the article does not specifically indicate the relationship between the mutation and its correspondence, the main Genotype/Subtype studied in the article is marked.
  • Viral Reference: Refers to the standard virus strain used to compare and analyze viral sequences.
Functional Impact and Mechanisms
  • Disease: An abnormal physiological state with specific symptoms and signs caused by viral infection.
  • Immune: The article focuses on the study of mutations and immune.
  • Target Gene: Host genes that viral mutations may affect.
Clinical and Epidemiological Correlations
  • Clinical Information: The study is a clinical or epidemiological study and provides basic information about the population.
  • Treatment: The study mentioned a certain treatment method, such as drug resistance caused by mutations. If the study does not specifically indicate the relationship between mutations and their correspondence treatment, the main treatment studied in the article is marked.
  • Location: The source of the research data.
Literature Information
  • Sequence Data: The study provides the data accession number.