Resistance to Reverse Transcriptase Inhibitor (RTI)
A Mutation in the 3′ Region of the Human Immunodeficiency Virus Type 1 Reverse Transcriptase (Y318F) Associated with Nonnucleoside Reverse Transcriptase Inhibitor Resistance
... Reverse Transcriptase Inhibitor Resistance P. Richard Harrigan, 1 * Mahboob Salim, 2 † David K. Stammers, 3 Brian Wynhoven, 1 Zabrina L. Brumme, 1 Paula McKenna, 4 Brendan Larder, 2 † and S. ...
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Insertions in the Reverse Transcriptase Increase both Drug Resistance and Viral Fitness in a Human Immunodeficiency Virus Type 1 Isolate Harboring the Multi-Nucleoside Reverse Transcriptase Inhibitor Resistance 69 Insertion Complex Mutation
... nucleoside reverse transcriptase inhibitor (NRTI) resistance may be grouped as multi-NRTI resistance (MNR) ...the reverse transcriptase (RT) of a human immunodeficiency ...
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Different Effects of Nonnucleoside Reverse Transcriptase Inhibitor Resistance Mutations on Cytotoxic T Lymphocyte Recognition between HIV-1 Subtype B and Subtype A/E Infections
... drug resistance mutations located in CTL epitopes are known to affect HIV-1-specific CTL ...Nonnucleoside reverse transcriptase inhibitor (NNRTI)-resistance RT181 mutations are ...
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Genotypic Correlates of Phenotypic Resistance to Efavirenz in Virus Isolates from Patients Failing Nonnucleoside Reverse Transcriptase Inhibitor Therapy
... NNRTI resistance muta- tions on cross-resistance to each of the NNRTIs in vitro was examined by testing mutant strains of HIV-1 constructed by site-directed ...with resistance to each of the NNRTIs, ...
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The Human Immunodeficiency Virus Type 1 Nonnucleoside Reverse Transcriptase Inhibitor Resistance Mutation I132M Confers Hypersensitivity to Nucleoside Analogs
... Drug Resistance Database, L214I is a polymorphism ...drug resistance muta- tions or the interpretation of the effects of a given drug resis- tance mutation on viral ...
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Patterns of emergent resistance-associated mutations after initiation of non-nucleoside reverse-transcriptase inhibitor-containing antiretroviral regimens in Taiwan: a multicenter cohort study
... the reverse transcriptase (RT) gene, as described ...The reverse transcription and polymerase chain reaction amplifications were carried out with appropriate negative controls to detect any possible ...
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Antiretroviral regimens sparing agents from the nucleoside(tide) reverse transcriptase inhibitor class: a review of the recent literature
... and/or resistance to one or more NRTIs are re-exposed to ‘ recycled ’ NRTIs in subsequent ART ...boosted-protease inhibitor with or without a third ...
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Nonnucleoside Reverse Transcriptase Inhibitor-Resistant HIV Is Stimulated by Efavirenz during Early Stages of Infection
... We believe it most likely that the effect of the drug is mediated through a direct interaction with RT, rather than through another viral or cellular protein. This concept is sup- ported by the facts that EFV and NVP, ...
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Reduced Fitness in Cell Culture of HIV-1 with Nonnucleoside Reverse Transcriptase Inhibitor-Resistant Mutations Correlates with Relative Levels of Reverse Transcriptase Content and RNase H Activity in Virions
... In conclusion, our current results indicate that the reduction of fitness in viruses with NNRTI resistance mutations is based on either of two possible mechanisms. We had previously re- ported that the mutant RTs ...
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Pharmacokinetics and tolerability of the new second-generation nonnucleoside reverse- transcriptase inhibitor KM-023 in healthy subjects
... Dovepress cha et al Despite its advantages, the use of efavirenz has been limited by the emergence of both central nervous system toxicities and viral resistance. 6–9 Second-generation NNRTIs, such as rilpivirine ...
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AZT resistance alters enzymatic properties and creates an ATP binding site in SFVmac reverse transcriptase
... nucleoside reverse transcriptase inhibitor azidothymidine (AZT, ...protease-reverse transcriptase (PR-RT) protein (K211I, I224T, S345T, E350K) are necessary to obtain highly AZT ...
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Cross clade simultaneous HIV drug resistance genotyping for reverse transcriptase, protease, and integrase inhibitor mutations by Illumina MiSeq
... drug resistance based on the Stanford drug resistance database list and the 2012 list of IAS-USA HIV drug resistance mutations as annotated on the reference ...
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Identification of a 3 aminoimidazo[1,2 a]pyridine inhibitor of HIV 1 reverse transcriptase
... IRES rluc virus construct.We thank Dr. David Smith and the UCSD Center for AIDS Research for providing PBMC samples. Author details 1 The Salk Institute for Biological Studies, Nomis Center for Immunobiology and ...
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The Genetic Basis of HIV-1 Resistance to Reverse Transcriptase and Protease Inhibitors
... RT inhibitor (NNRTI) resistance mutations The NNRTIs bind to a hydrophobic pocket in the RT enzyme close to, but not contiguous with, the active ...NNRTI resistance are in the hydrophobic pocket to ...
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HIV-1 and HIV-2 Reverse Transcriptases: Different Mechanisms of Resistance to Nucleoside Reverse Transcriptase Inhibitors
... the inhibitor and a potential loss in the protein’s ability to perform the function(s) necessary for the replication of the ...ent resistance pathways (5, ...of resistance to AZT caused by these ...
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A Novel Molecular Mechanism of Dual Resistance to Nucleoside and Nonnucleoside Reverse Transcriptase Inhibitors
... on ETR susceptibility. CN mutation T386A was also selected in the presence of ETR during in vitro experiments, suggesting a role in ETR resistance (56). These results from our in vivo assays, in vitro RNase H ...
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The Phenylmethylthiazolylthiourea Nonnucleoside Reverse Transcriptase (RT) Inhibitor MSK-076 Selects for a Resistance Mutation in the Active Site of Human Immunodeficiency Virus Type 2 RT
... DISCUSSION We have shown that MSK-076 is a potent inhibitor of HIV-1 in cell culture. This is in line with reports for other members of the PETT series (1, 11). However, the PETT compound reported here also has ...
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Retroviral recombination can lead to linkage of reverse transcriptase mutations that confer increased zidovudine resistance.
... of resistance mutations leading to the production and selection of multiple resistant variants ...drug resistance. The selection of protease inhibitor-resistant mutants in vitro suggests in vivo ...
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Sargassum fusiformefraction is a potent and specific inhibitor of HIV 1 fusion and reverse transcriptase
... Conclusion Taken together, we have demonstrated an average of 53% inhibition of HIV-1 fusion, and approximately 47% of vir- ions that do enter cells are further inhibited up to 79% by RT, which equals to a total global ...
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Superscript Reverse Transcriptase Protocol
... superscript reverse transcriptase protocol was ...superscript reverse transcriptase protocol provided with automated water for the clinical ...superscript reverse transcriptase ...
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