Abstract: Here, we perform multinanosecond molecular dynamics simulations on L63P HIV-1 PR, corresponding to the wild type, and one of its most frequently occurring compensatory mutations, M46I, complexed with the substrate and an enzymatic intermediate.
Persistence of earlier HIV-1 drug resistance mutations at new treatment failure.
Abstract: In contrast, after changing from indinavir to saquinavir or nelfinavir, the M46I/L and/or V82A/F/ST disappeared in only 9 of 21 occasions at the new treatment failure.
Genotypic and phenotypic cross-resistance patterns to lopinavir and amprenavir in protease inhibitor-experienced patients with HIV viremia.
PMID: 12396453
2002
AIDS research and human retroviruses
Abstract: Mutations L10I (RI, 1.7), M46I (RI, 2.3), and L90M (RI, 1.9, but 65% linked with the I84V) were associated with decreased APV susceptibility in the univariate analysis (p < 0.001).
Computational studies of the resistance patterns of mutant HIV-1 aspartic proteases towards ABT-538 (ritonavir) and design of new derivatives.
PMID: 12463635
2002
Journal of molecular graphics & modelling
Abstract: We have performed a computational study of the binding of ABT-538 (ritonavir) with wild type (wt) PR and 12 model mutant structures (R8Q, V321, M461, V82A, V82F, V821, I84V, M46I/V82F, M46I/I84V, V32I/I84V, V82F/I84V and V32I/K45I/F53L/A71V/I84V/L89M (6X)) for which inhibition data are available.
In vitro evolution of the human immunodeficiency virus type 1 gag-protease region and maintenance of reverse transcriptase resistance following prolonged drug exposure.
PMID: 11230439
2001
Journal of clinical microbiology
Abstract: A change from alanine to valine was observed in 4 of 10 clones in the P2 position of the p7-p1 Gag-protease cleavage site, linked to position M46I in the dominant viral quasispecies.
Abstract: The IDV-treated virus was highly resistant to 3TC, ZDV, and IDV and accumulated protease mutations at positions M46I and V82F.
[Pharmacological study and clinical effect of HIV protease inhibitor amprenavir].
Abstract: One of the major concerns associated with anti-HIV agents is the resistance mutation development, and the presence of I50V, M46I/L, I47V, I54L/V and I84V genotype has been observed in amprenavir therapy experienced subjects.
High prevalence of genotypic and phenotypic HIV-1 drug-resistant strains among patients receiving antiretroviral therapy in Abidjan, Cote d'Ivoire.
PMID: 11391173
2001
Journal of acquired immune deficiency syndromes (1999)
Abstract: The prevalence of mutations associated with resistance to ARV drugs was: 29 (42.6%) to zidovudine, 10 (14.7%) to lamivudine, one (1.5%) to didanosine, one K103N mutation (associated with resistance to delavirdine, nevirapine, and efavirenz), one Y181C mutation (associated with resistance to delavirdine and nevirapine), two to both indinavir (M46I/L and V82A) and saquinavir (G48V and L90M), and one each to ritonavir (V82A) and nelfinavir (D30N).
Resistance-associated mutations in the human immunodeficiency virus type 1 subtype c protease gene from treated and untreated patients in the United Kingdom.
PMID: 11427587
2001
Journal of clinical microbiology
Abstract: D30N, M46I, V82A/F, and I84V were seen rarely.
Identification of genotypic changes in human immunodeficiency virus protease that correlate with reduced susceptibility to the protease inhibitor lopinavir among viral isolates from protease inhibitor-experienced patients.
Abstract: Two statistical tests showed that specific mutations at 11 amino acid positions in protease (L10F/I/R/V, K20M/R, L24I, M46I/L, F53L, I54L/T/V, L63P, A71I/L/T/V, V82A/F/T, I84V, and L90M) were associated with reduced susceptibility.
Genotypic variation of HIV-1 reverse transcriptase and protease: comparative analysis of clade C and clade B.
Abstract: RESULTS: There were 87 clade B (14 naive) and 78 clade C (20 naive) [corrected] with significant differences in the prevalence of known drug-resistance mutations between the clades: in naive patients in the protease region M36I 7% and 95% (P < 0.0001), K20R 0% and 27% (P = 0.063), A71V 18% and 0% (P = 0.063), M46I 0% and 13%, and V77I 18% and 0% (P = 0.063), respectively, and in the reverse transcriptase region A98G/S 0% and 20% (P = 0.12), respectively.
HIV mutation literature information.
PMID: 
2002
Protein science
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