1t05

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{{STRUCTURE_1t05| PDB=1t05 | SCENE= }}
{{STRUCTURE_1t05| PDB=1t05 | SCENE= }}
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'''HIV-1 reverse transcriptase crosslinked to template-primer with tenofovir-diphosphate bound as the incoming nucleotide substrate'''
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===HIV-1 reverse transcriptase crosslinked to template-primer with tenofovir-diphosphate bound as the incoming nucleotide substrate===
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==Overview==
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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 A 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 A 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.
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(as it appears on PubMed at http://www.pubmed.gov), where 15107837 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15107837}}
==About this Structure==
==About this Structure==
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[[Category: Rt-dna complex]]
[[Category: Rt-dna complex]]
[[Category: Tenofovir]]
[[Category: Tenofovir]]
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Revision as of 01:17, 29 July 2008

Image:1t05.png

Template:STRUCTURE 1t05

HIV-1 reverse transcriptase crosslinked to template-primer with tenofovir-diphosphate bound as the incoming nucleotide substrate

Template:ABSTRACT PUBMED 15107837

About this Structure

1T05 is a Protein complex structure of sequences from Human immunodeficiency virus 1. Full crystallographic information is available from OCA.

Reference

Structures of HIV-1 RT-DNA complexes before and after incorporation of the anti-AIDS drug tenofovir., Tuske S, Sarafianos SG, Clark AD Jr, Ding J, Naeger LK, White KL, Miller MD, Gibbs CS, Boyer PL, Clark P, Wang G, Gaffney BL, Jones RA, Jerina DM, Hughes SH, Arnold E, Nat Struct Mol Biol. 2004 May;11(5):469-74. Epub 2004 Apr 25. PMID:15107837

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