Evidence map›Paper›PMID 25243902›Full record

ArticleACS chemical biology2014

Structural analysis of asunaprevir resistance in HCV NS3/4A protease.

Djadé I Soumana, Akbar Ali, Celia A Schiffer

Open access · greenAbstract read
In one paragraph

Article in ACS chemical biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
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  4. Article
  5. Review
  6. Going Viral: An Investigation into the Chameleonic Behaviour of Antiviral Compounds.Chemistry (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Resistance outside the substrate envelope: hepatitis C NS3/4A protease inhibitors.Critical reviews in biochemistry and molecular biology · 2019
    Review
  16. Review
  17. Article
  18. Article
  19. UsingACS medicinal chemistry letters · 2018
    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

3 authors at 1 institution in 1 country.

Djadé I SoumanaDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School , Worcester, Massachusetts 01655, United States.
Akbar Ali
Celia A Schiffer
University of Massachusetts Chan Medical School · US

Funding

Drug Resistance in HCV NS3/4A - Inhibitor binding versus substrate recognitionR01AI085051 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI SCHIFFER, CELIA A. · 2010 to 2019
$4.6M
Macromolecular Crystallographic HighFlux Home Lab X-ray Diffraction SystemS10OD012028 · OD · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI SCHIFFER, CELIA A. · 2012 to 2012
$531k
HCV protease: from atomic mechanism for drug resistance to novel drug designF31GM103259 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI SOUMANA, DJADE IBRAHIM · 2013 to 2015
$86k
NIAID NIH HHS R01 AI085051NIGMS NIH HHS F31 GM103259NIH HHS S10 OD012028
6 · The paper itself

Abstract

Asunaprevir (ASV), an isoquinoline-based competitive inhibitor targeting the hepatitis C virus (HCV) NS3/4A protease, is very potent in vivo. However, the potency is significantly compromised by the drug resistance mutations R155K and D168A. In this study three crystal structures of ASV and an analogue were determined to analyze the structural basis of drug resistance susceptibility. These structures revealed that ASV makes extensive contacts with Arg155 outside the substrate envelope. Arg155 in turn is stabilized by Asp168, and thus when either residue is mutated, the enzyme's interaction with ASV's P2* isoquinoline is disrupted. Adding a P1-P3 macrocycle to ASV enhances the inhibitor's resistance barrier, likely due to poising the inhibitor to its bound conformation. Macrocyclic inhibitors with P2* extension moieties avoiding interaction with the protease S2 residues including Arg155 must be chosen for future design of more robust protease inhibitors.

Indexed as

Antiviral AgentsCarrier ProteinsDEAD-box RNA HelicasesDrug Resistance, ViralHepacivirusIntracellular Signaling Peptides and ProteinsIsoquinolinesNucleoside-TriphosphataseSerine EndopeptidasesSulfonamidesViral Nonstructural ProteinsViral ProteasesAntiviral AgentsasunaprevirCarrier ProteinsDEAD-box RNA HelicasesIntracellular Signaling Peptides and ProteinsIsoquinolinesNS3 protein, hepatitis C virusNS4A cofactor peptide, Hepatitis C virusNucleoside-TriphosphataseSerine EndopeptidasesSulfonamidesViral Nonstructural ProteinsViral Proteases

Identifiers

PMID25243902
PMCPMC4245159
OpenAlexW2059479255

What OpenQuestion holds

Textmetadata
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.