HIV mutation literature information.


  NNRTI-selected mutations at codon 190 of human immunodeficiency virus type 1 reverse transcriptase decrease susceptibility to stavudine and zidovudine.
 PMID: 17640745       2007       Antiviral research
Abstract: High-level resistance to nevirapine and moderate level resistance to both stavudine and zidovudine were associated with G190S/A/E substitutions.
Abstract: Interestingly, the simultaneous presence of G190S and T215Y was associated with a reduction in the impairment of the G190S-mutated enzyme.
Abstract: On the other hand, G190S was associated with a marked decrease in RT catalytic efficiency, while T215Y showed a more limited effect.


  Genotypic drug resistance and long-term mortality in patients with triple-class antiretroviral drug failure.
 PMID: 17926645       2007       Antiviral therapy
Abstract: In a regression model adjusted for CD4+ T-cell count, HIV RNA, year of TCF, age, gender and previous inferior antiretroviral therapy, harbouring > or =9 versus < or =8 mutations was associated with increased mortality (mortality rate ratio [MRR] 2.3 [95% confidence interval (CI) 1.1-4.8]), as were the individual mutations T215Y (MRR 3.4 [95% CI 1.6-7.0]), G190A/S (MRR 3.2 [95% CI 1.6-6.6]) and V82F/A/T/S (MRR 2.5 [95% CI 1.2-5.3]).


  N348I in the connection domain of HIV-1 reverse transcriptase confers zidovudine and nevirapine resistance.
 PMID: 18052601       2007       PLoS medicine
Result: N348I was highly associated with several key drug resistance mutations, including M184V/I (p = 6.6 x 10-45) the TAMs M41L (p = 1.8 x 10-14), D67N (p = 7.7 x 10-10), K70R (p = 1.4 x 10-10), T215Y/F (p = 6.0 x 10-21), K219Q/E (p = 8.0 x 10-4), and L210W (p = 0.002), and the NNRTI resistance mutations K103N (p = 1.1 x 10-19), V108l (p = 8.4 x 10-13), Y181C/I (p = 4.7 x 10-13) and G190A/S (p = 8.0 x 10-9) (Figure 1).
Discussion: In our cohort N348I was associated with the appearance of


  Reverse transcriptase backbone can alter the polymerization and RNase activities of non-nucleoside reverse transcriptase mutants K101E+G190S.
 PMID: 16504235       2006       Virology
Abstract: In the absence of efavirenz, the fitness hierarchy was G190S < G190A < K103N < wild-type.
Abstract: It also suggests that high concentrations of efavirenz are unlikely to favor the selection of G190S clinically.
Abstract: The fitness reduction of G190S relative to K103N was less evident at high efavirenz concentrations, although K103N still replicated more efficiently.

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