Novel enzyme-linked minisequence assay for genotypic analysis of human immunodeficiency virus type 1 drug resistance.
PMID: 14605126
2003
Journal of clinical microbiology
Abstract: ELMA is a combination of hybridization and a 1-base extension reaction, and we designed the assay to detect five mutations conferring nucleoside analogue resistance (M41L, D67N, K70R, T215Y, and M184V) and six mutations conferring protease inhibitor resistance (D30N, M46I, G48V, V82A, I84V, and L90M).
Multidrug resistance to HIV-1 protease inhibition requires cooperative coupling between distal mutations.
Abstract: A mutant containing only the four active site mutations (V82A/I84V/M46I/I54V) only showed a small cooperative effect, suggesting that the mutations at the dimer interface (L10I/L90M) play a major role in eliciting a cooperative response.
Abstract: This mutant (MDR-HM) contains six amino acid mutations (L10I/M46I/I54V/V82A/I84V/L90M) located within and outside the active site of the enzyme.
Abstract: To understand the origin of resistance, three submutants containing mutations in specific regions were also studied, i.e., the active site (
In vivo HIV-1 compartmentalisation: drug resistance-associated mutation distribution.
Abstract: However, some mutations detectable in some tissues were not seen in plasma (e.g., M46I and D30N in the protease).
A potent human immunodeficiency virus type 1 protease inhibitor, UIC-94003 (TMC-126), and selection of a novel (A28S) mutation in the protease active site.
Abstract: Upon selection of HIV-1 in the presence of UIC-94003, mutants carrying a novel active-site mutation, A28S, in the presence of L10F, M46I, I50V, A71V, and N88D appeared.
Emergence of resistance to protease inhibitor amprenavir in human immunodeficiency virus type 1-infected patients: selection of four alternative viral protease genotypes and influence of viral susceptibility to coadministered reverse transcriptase nucleoside inhibitors.
PMID: 11850255
2002
Antimicrobial agents and chemotherapy
Abstract: These mutations fell into four distinct categories, characterized by the presence of either I50V, I54L/I54M, I84V, or V32I+I47V and often included accessory mutations, commonly M46I/L.
[Mutations of resistance of HIV-1 in previously untreated patients at penitentiary centers of the Autonomous Community of Valencia, Spain. REPRICOVA study].
Abstract: Certain amprenavir-selected mutants conferred greater than 10-fold cross-resistance to lopinavir, including PrL10F/M46I/I50V-GagL449F (19-fold) and PrL10F/M46I/I47V/I50V-GagL449F (31-fold).
Abstract: The order of relative replication capacity was wild-type > L10F > L10F/I84V > L10F/M46I/I50V > L10F/M46I/
Longitudinal use of a line probe assay for human immunodeficiency virus type 1 protease predicts phenotypic resistance and clinical progression in patients failing highly active antiretroviral therapy.
PMID: 12019110
2002
Antimicrobial agents and chemotherapy
Abstract: Combinations of protease mutations (M46I, G48V, I54V, V82A or -F, I84V, and L90M) predicted phenotypic resistance to the protease inhibitor and to nelfinavir.
Genetic variation of the protease and reverse transcriptase genes in HIV-1 CRF04_cpx strains.
PMID: 12079565
2002
AIDS research and human retroviruses
Abstract: Substitutions classically associated with resistance to antiretroviral drugs were observed in six of seven samples, including G48V, V82A, L90M, M46I in the protease protein, and K70R, D69D/N, M184V, T215F, K103N in the reverse transcriptase protein.
Changes in human immunodeficiency virus type 1 Gag at positions L449 and P453 are linked to I50V protease mutants in vivo and cause reduction of sensitivity to amprenavir and improved viral fitness in vitro.
Abstract: Sequential plasma samples from one patient revealed a transition from I50V M46L P453L viruses at early time points to I50V M46I L449F viruses in later samples.
Abstract: The decreased in vitro fitness of the I50V mutant was only partially improved by addition of either CS change (I50V M46I L449F mutant replicative capacity approximately 16% of that of wild-type virus).
HIV mutation literature information.
PMID: 
2003
Journal of clinical microbiology
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