Evidence map›Paper›PMID 27512818›Full record

ArticleJournal of the American Chemical Society2016

Molecular and Dynamic Mechanism Underlying Drug Resistance in Genotype 3 Hepatitis C NS3/4A Protease.

Djadé I Soumana, Nese Kurt Yilmaz, Akbar Ali, Kristina L Prachanronarong, Celia A Schiffer

Abstract read
In one paragraph

Article in Journal of the American Chemical Society, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Going Viral: An Investigation into the Chameleonic Behaviour of Antiviral Compounds.Chemistry (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. 1Biomolecules · 2020
    Article
  16. Article
  17. Review
  18. 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

5 authors.

Djadé I SoumanaDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School , Worcester, Massachusetts 01605, United States.
Nese Kurt YilmazDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School , Worcester, Massachusetts 01605, United States.
Akbar AliDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School , Worcester, Massachusetts 01605, United States.
Kristina L PrachanronarongDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School , Worcester, Massachusetts 01605, United States.
Celia A SchifferDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School , Worcester, Massachusetts 01605, United States.

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

Hepatitis C virus (HCV), affecting an estimated 150 million people worldwide, is the leading cause of viral hepatitis, cirrhosis and hepatocellular carcinoma. HCV is genetically diverse with six genotypes (GTs) and multiple subtypes of different global distribution and prevalence. Recent development of direct-acting antivirals against HCV including NS3/4A protease inhibitors (PIs) has greatly improved treatment outcomes for GT-1. However, all current PIs exhibit significantly lower potency against GT-3. Lack of structural data on GT-3 protease has limited our ability to understand PI failure in GT-3. In this study the molecular basis for reduced potency of current inhibitors against GT-3 NS3/4A protease is elucidated with structure determination, molecular dynamics simulations and inhibition assays. A chimeric GT-1a3a NS3/4A protease amenable to crystallization was engineered to recapitulate decreased sensitivity of GT-3 protease to PIs. High-resolution crystal structures of this GT-1a3a bound to 3 PIs, asunaprevir, danoprevir and vaniprevir, had only subtle differences relative to GT-1 despite orders of magnitude loss in affinity. In contrast, hydrogen-bonding interactions within and with the protease active site and dynamic fluctuations of the PIs were drastically altered. The correlation between loss of intermolecular dynamics and inhibitor potency suggests a mechanism where polymorphisms between genotypes (or selected mutations) in the drug target confer resistance through altering the intermolecular dynamics of the protein-inhibitor complex.

Indexed as

GenotypeCatalytic DomainDEAD-box RNA HelicasesDrug Resistance, ViralHepacivirusMolecular Dynamics SimulationNucleoside-TriphosphataseProtease InhibitorsSerine EndopeptidasesStatic ElectricityViral Nonstructural ProteinsViral ProteasesDEAD-box RNA HelicasesNS3 protein, hepatitis C virusNucleoside-TriphosphataseProtease InhibitorsSerine EndopeptidasesViral Nonstructural ProteinsViral Proteases

Identifiers

PMID27512818
PMCPMC5221612

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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.