Structures of HIV-1 RT–DNA complexes before and after incorporation of the anti-AIDS drug tenofovir

Tenofovir, also known as PMPA, R -9-(2-(phosphonomethoxypropyl)adenine, is a nucleotide reverse transcriptase (RT) inhibitor. We have determined the crystal structures of two related complexes of HIV-1 RT with template primer and tenofovir: (i) a ternary complex at a resolution of 3.0 Å of RT crossl...

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Veröffentlicht in:Nature structural & molecular biology 2004-05, Vol.11 (5), p.469-474
Hauptverfasser: Tuske, Steve, Sarafianos, Stefan G, Clark, Arthur D, Ding, Jianping, Naeger, Lisa K, White, Kirsten L, Miller, Michael D, Gibbs, Craig S, Boyer, Paul L, Clark, Patrick, Wang, Gang, Gaffney, Barbara L, Jones, Roger A, Jerina, Donald M, Hughes, Stephen H, Arnold, Eddy
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container_end_page 474
container_issue 5
container_start_page 469
container_title Nature structural & molecular biology
container_volume 11
creator Tuske, Steve
Sarafianos, Stefan G
Clark, Arthur D
Ding, Jianping
Naeger, Lisa K
White, Kirsten L
Miller, Michael D
Gibbs, Craig S
Boyer, Paul L
Clark, Patrick
Wang, Gang
Gaffney, Barbara L
Jones, Roger A
Jerina, Donald M
Hughes, Stephen H
Arnold, Eddy
description Tenofovir, also known as PMPA, R -9-(2-(phosphonomethoxypropyl)adenine, is a nucleotide reverse transcriptase (RT) inhibitor. We have determined the crystal structures of two related complexes of HIV-1 RT with template primer and tenofovir: (i) a ternary complex at a resolution of 3.0 Å of RT crosslinked to a dideoxy-terminated DNA with tenofovir-diphosphate bound as the incoming substrate; and (ii) a RT–DNA complex at a resolution of 3.1 Å with tenofovir at the 3′ primer terminus. The tenofovir nucleotide in the tenofovir-terminated structure seems to adopt multiple conformations. Some nucleoside reverse transcriptase inhibitors, including 3TC and AZT, have elements ('handles') that project beyond the corresponding elements on normal dNTPs (the 'substrate envelope'). HIV-1 RT resistance mechanisms to AZT and 3TC take advantage of these handles; tenofovir's structure lacks handles that could protrude through the substrate envelope to cause resistance.
doi_str_mv 10.1038/nsmb760
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subjects Acquired immune deficiency syndrome
Adenine - analogs & derivatives
Adenine - chemistry
AIDS
Base Sequence
Binding sites
Biochemistry
Biological Microscopy
Biology
Biomedical and Life Sciences
Deoxyribonucleic acid
DNA
DNA Primers
DNA, Viral - chemistry
Drug resistance
Enzymes
Health aspects
HIV
HIV (Viruses)
HIV Reverse Transcriptase - chemistry
Human immunodeficiency virus
Human immunodeficiency virus 1
Life Sciences
Membrane Biology
Models, Molecular
Mutation
Organophosphonates
Organophosphorus Compounds - chemistry
Physiological aspects
Protein Structure
Reverse transcriptase
Reverse Transcriptase Inhibitors - chemistry
Structure
Substrates
Tenofovir
title Structures of HIV-1 RT–DNA complexes before and after incorporation of the anti-AIDS drug tenofovir
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