Evidence map›Paper›PMID 20724442›Full record

ArticleNucleic acids research2011

Essential structural requirements for specific recognition of HIV TAR RNA by peptide mimetics of Tat protein.

Amy Davidson, Krystyna Patora-Komisarska, John A Robinson, Gabriele Varani

Abstract read
In one paragraph

Article in Nucleic acids research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
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

43 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. RNA-Binding Macrocyclic Peptides.Frontiers in molecular biosciences · 2022
    Review
  13. Article
  14. Review
  15. Article
  16. Exposing Hidden High-Affinity RNA Conformational States.Journal of the American Chemical Society · 2020
    Article
  17. Review
  18. Article
  19. Article
  20. Structural mechanism for HIV-1 TAR loop recognition by Tat and the super elongation complex.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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.

Amy DavidsonDepartment of Chemistry, University of Washington, Seattle, WA 98195, USA,
Krystyna Patora-Komisarska
John A Robinson
Gabriele Varani

Funding

New Inhibitors of HIV ReplicationR01AI070090 · NIAID · UNIVERSITY OF WASHINGTON · PI VARANI, GABRIELE · 2007 to 2011
$2.1M
NIAID NIH HHS AI 070090NIAID NIH HHS R01 AI070090
6 · The paper itself

Abstract

The pharmacological disruption of the interaction between the HIV Tat protein and its cognate transactivation response RNA (TAR) would generate novel anti-viral drugs with a low susceptibility to drug resistance, but efforts to discover ligands with sufficient potency to warrant pharmaceutical development have been unsuccessful. We have previously described a family of structurally constrained β-hairpin peptides that potently inhibits viral growth in HIV-infected cells. The nuclear magnetic resonance (NMR) structure of an inhibitory complex revealed that the peptide makes intimate contacts with the 3-nt bulge and the upper helix of the RNA hairpin, but that a single residue contacts the apical loop where recruitment of the essential cellular co-factor cyclin T₁ occurs. Attempting to extend the peptide to form more interactions with the RNA loop, we examined a library of longer peptides and achieved > 6-fold improvement in affinity. The structure of TAR bound to one of the extended peptides reveals that the peptide slides down the major groove of the RNA, relative to our design, in order to maintain critical interactions with TAR. These conserved contacts involve three amino acid side chains and identify critical interaction points required for potent and specific binding to TAR RNA. They constitute a template of essential interactions required for inhibition of this RNA.

Indexed as

HIV Long Terminal RepeatAnti-HIV AgentsBinding SitesHIV-1Hydrophobic and Hydrophilic InteractionsModels, MolecularNucleic Acid ConformationPeptidesPeptides, CyclicRNA, Viraltat Gene Products, Human Immunodeficiency VirusAnti-HIV AgentsPeptidesPeptides, CyclicRNA, Viraltat Gene Products, Human Immunodeficiency Virus

Identifiers

PMID20724442
PMCPMC3017588

What OpenQuestion holds

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Registered trials

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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.