Differential removal of thymidine nucleotide analogues from blocked DNA chains by human immunodeficiency virus reverse transcriptase in the presence of physiological concentrations of 2'-deoxynucleoside triphosphates.
PMID: 11083661
2000
Antimicrobial agents and chemotherapy
Abstract: ATP-dependent removal of either d4TMP or 3'-azido-3'-deoxythymidine-5'-monophosphate (AZTMP) is increased in AZT resistant HIV-1 RT (containing D67N/K70R/T215F/K219Q mutations).
[Prevalence of primary mutations in human immunodeficiency virus with resistance to nucleoside analogues in previously untreated patients from Andalusia. Andalusian Group for the Study of Infectious diseases (GAEI)].
Abstract: PATIENTS AND METHOD: Genotype study (LiPA) of mutations in codons M41L, T69D, K70R, L74V, M184V, T215Y/F and RT75G-S was performed in 106 HIV-naive patients from 12 Andalusian hospitals, with viral load over 5000 copies of RNA/ml.
Sequence diversity of the reverse transcriptase of human immunodeficiency virus type 1 from untreated Brazilian individuals.
PMID: 10390221
1999
Antimicrobial agents and chemotherapy
Abstract: Three of these non-B isolates, named brp004, brp063, and brp069, revealed three other relevant AZT resistance mutations-a T215F mutation and two M41L mutations, respectively-hidden by the nonreactivity to line probe assay strips on the respective codon regions.
Emergence of zidovudine and multidrug-resistance mutations in the HIV-1 reverse transcriptase gene in therapy-naive patients receiving stavudine plus didanosine combination therapy. STADI Group.
Abstract: Among the 39 subjects, 18 (46%) developed mutations: one developed the Val75Thr/Ala mutation, four (10%) developed a Gln151Met multidrug-resistance mutation (MDR), associated in one of them with the Phe77Leu and the Phe116Tyr MDR mutations and 14 (36%) developed one or more zidovudine-specific mutations (Met41Leu, Asp67Asn, Lys70Arg, Leu210Trp, Thr215Tyr/Phe).
Drug resistance mutations among HIV-1 strains from antiretroviral-naive patients in Martinique, French West Indies.
PMID: 10634203
1999
Journal of acquired immune deficiency syndromes (1999)
Abstract: ZDV resistance mutations T215Y/F, M41L, and K70R were found in 2, 5, and 12 individuals, respectively.
HIV resistance to zidovudine: the role of pyrophosphorolysis.
Abstract: The potential replication deficit of an increased reverse reaction during DNA synthesis is compensated by increased DNA synthesis processivity, a phenotype that results from the T215F/Y/K219Q mutations in RT.
Abstract: While this resistance could be unequivocally correlated with multiple mutations in HIV reverse transcriptase (D67N, K70R, T215F/Y, K219Q), the mechanism or phenotype for this resistance has remained obscure for more than a decade, despite active investigation.
Codon 215 mutations in human immunodeficiency virus-infected pregnant women. Swiss Collaborative 'HIV and Pregnancy' Study.
PMID: 9952382
1999
The Journal of infectious diseases
Abstract: Six women (9.6%) harbored a codon T215Y/F mutation, which is associated with high-level resistance to zidovudine.
Fast genotypic detection of drug resistance mutations in the HIV-1 reverse transcriptase gene of treatment-naive patients.
Abstract: Mutation K70R (resistance to zidovudine) was found in 8 patients, M41L (resistance to zidovudine) in 5 patients, M184V/I (resistance to ddI/ddC/3TC) in 2 patients, and T215Y/F (resistance to zidovudine) in 4 patients.
Switch to unusual amino acids at codon 215 of the human immunodeficiency virus type 1 reverse transcriptase gene in seroconvertors infected with zidovudine-resistant variants.
Abstract: Sequences of the human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT) domain were determined by direct sequencing of HIV-1 RNA in successive plasma samples from eight seroconverting patients infected with virus bearing the T215Y/F amino acid substitution associated with zidovudine (ZDV) resistance.
Genotypic changes in human immunodeficiency virus type 1 associated with loss of suppression of plasma viral RNA levels in subjects treated with ritonavir (Norvir) monotherapy.
Abstract: The relative fitness of the protease V82A ritonavir resistance mutation and reverse transcriptase T215Y/F zidovudine resistance mutation following drug withdrawal were estimated to be 96 to 98% that of the wild type.
HIV mutation literature information.
PMID: 
2000
Antimicrobial agents and chemotherapy
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