Evidence map›Paper›PMID 25232099›Full record

ArticleNucleic acids research2014

Mechanism of allosteric inhibition of HIV-1 reverse transcriptase revealed by single-molecule and ensemble fluorescence.

Grant D Schauer, Kelly D Huber, Sanford H Leuba, Nicolas Sluis-Cremer

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Efavirenz Metabolism: Influence of Polymorphic CYP2B6 Variants and Stereochemistry.Drug metabolism and disposition: the biological fate of chemicals · 2019
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Physiological MgBiochemistry · 2017
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Grant D SchauerProgram in Molecular Biophysics and Structural Biology, University of Pittsburgh School of Medicine, Hillman Cancer Center, 5117 Centre Avenue, Pittsburgh, PA 15213, USA Department of Cell Biology, University of Pittsburgh School of Medicine, Hillman Cancer Center, 5117 Centre Avenue, Pittsburgh, PA 15213, USA.
Kelly D HuberDepartment of Medicine, Division of Infectious Diseases, University of Pittsburgh School of Medicine, Scaife Hall, 3550 Terrace Street, Pittsburgh, PA 15261, USA.
Sanford H LeubaProgram in Molecular Biophysics and Structural Biology, University of Pittsburgh School of Medicine, Hillman Cancer Center, 5117 Centre Avenue, Pittsburgh, PA 15213, USA Department of Cell Biology, University of Pittsburgh School of Medicine, Hillman Cancer Center, 5117 Centre Avenue, Pittsburgh, PA 15213, USA leuba@pitt.edu.
Nicolas Sluis-CremerDepartment of Medicine, Division of Infectious Diseases, University of Pittsburgh School of Medicine, Scaife Hall, 3550 Terrace Street, Pittsburgh, PA 15261, USA.
University of Pittsburgh · USUPMC Hillman Cancer Center · US

Funding

NNRTI induced conformational changes in HIV-1 RT - Equipment SupplementR01GM068406 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SLUIS-CREMER, NICOLAS PAUL · 2003 to 2017
$3.7M
Novel mechanisms of HIV resistance to RTIsR01AI081571 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SLUIS-CREMER, NICOLAS PAUL · 2009 to 2018
$3.0M
Training in the Molecular Biophysics and Structural BiologyT32GM088119 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HINCK, ANDREW P · 2011 to 2020
$1.6M
NIAID NIH HHS R01 AI081571NIAID NIH HHS R01AI081571NIGMS NIH HHS R01 GM068406NIGMS NIH HHS R01GM068406NIGMS NIH HHS T32 GM088119NIGMS NIH HHS T32GM088119
6 · The paper itself

Abstract

Non-nucleoside reverse transcriptase (RT) inhibitors (NNRTIs) are routinely used to treat HIV-1 infection, yet their mechanism of action remains unclear despite intensive investigation. In this study, we developed complementary single-molecule fluorescence and ensemble fluorescence anisotropy approaches to discover how NNRTIs modulate the intra-molecular conformational changes and inter-molecular dynamics of RT-template/primer (T/P) and RT-T/P-dNTP complexes. We found that NNRTI binding to RT induces opening of the fingers and thumb subdomains, which increases the dynamic sliding motion of the enzyme on the T/P and reduces dNTP binding affinity. Further, efavirenz promotes formation of the E138-K101 salt bridge between the p51 and p66 subunits of RT, which contributes to opening of the thumb/fingers subdomains. Engineering a more polar salt bridge between p51 and p66 resulted in even greater increases in the thumb/fingers opening, RT sliding, dNTP binding disruption and in vitro and in vivo RT inhibition than were observed with wild-type RT. We also observed that K103N, a clinically relevant NNRTI resistance mutation, does not prevent binding between efavirenz and RT-T/P but instead allows formation of a stable and productive RT-T/P-dNTP complex, possibly through disruption of the E138-K101 salt bridge. Collectively, these data describe unique structure-activity-resistance relationships that could be exploited for drug development.

Indexed as

AlkynesAllosteric RegulationBenzoxazinesCyclopropanesDeoxyribonucleotidesDNA PrimersFluorescence PolarizationHIV Reverse TranscriptaseMutationProtein SubunitsReverse Transcriptase InhibitorsTemplates, GeneticAlkynesBenzoxazinesCyclopropanesDeoxyribonucleotidesDNA PrimersefavirenzHIV Reverse TranscriptaseProtein Subunitsreverse transcriptase, Human immunodeficiency virus 1Reverse Transcriptase Inhibitors

Identifiers

PMID25232099
PMCPMC4191400
OpenAlexW2076228264

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.