Evidence map›Paper›PMID 24551230›Full record

ArticlePloS one2014

In silico identification and evaluation of leads for the simultaneous inhibition of protease and helicase activities of HCV NS3/4A protease using complex based pharmacophore mapping and virtual screening.

Abdul Wadood, Muhammad Riaz, Reaz Uddin, Zaheer Ul-Haq

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 32 citations in OpenAlex.

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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.

Abdul WadoodComputational Medicinal Chemistry Laboratory, Department of Biochemistry Abdul Wali Khan University Mardan, Mardan, Khyber Pakhthunkhwa, Pakistan.
Muhammad RiazComputational Medicinal Chemistry Laboratory, Department of Biochemistry Abdul Wali Khan University Mardan, Mardan, Khyber Pakhthunkhwa, Pakistan.
Reaz UddinDr. Panjwani Center for Molecular Medicine and Drug Research, University of Karachi, Karach, Sindh, Pakistan.
Zaheer Ul-HaqDr. Panjwani Center for Molecular Medicine and Drug Research, University of Karachi, Karach, Sindh, Pakistan.
Abdul Wali Khan University Mardan · PKUniversity of Karachi · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatitis C virus (HCV) infection is an alarming and growing threat to public health. The present treatment gives limited efficacy and is poorly tolerated, recommending the urgent medical demand for novel therapeutics. NS3/4A protease is a significant emerging target for the treatment of HCV infection. This work reports the complex-based pharmacophore modeling to find out the important pharmacophoric features essential for the inhibition of both protease and helicase activity of NS3/4A protein of HCV. A seven featured pharmacophore model of HCV NS3/4A protease was developed from the crystal structure of NS3/4A protease in complex with a macrocyclic inhibitor interacting with both protease and helicase sites residues via MOE pharmacophore constructing tool. It consists of four hydrogen bond acceptors (Acc), one hydrophobic (Hyd), one for lone pair or active hydrogen (Atom L) and a heavy atom feature (Atom Q). The generated pharmacophore model was validated by a test database of seventy known inhibitors containing 55 active and 15 inactive/least active compounds. The validated pharmacophore model was used to virtually screen the ChemBridge database. As a result of screening 1009 hits were retrieved and were subjected to filtering by Lipinski's rule of five on the basis of which 786 hits were selected for further assessment using molecular docking studies. Finally, 15 hits of different scaffolds having interactions with important active site residues were predicted as lead candidates. These candidates having unique scaffolds have a strong likelihood to act as further starting points in the development of novel and potent NS3/4A protease inhibitors.

Indexed as

Molecular Dynamics SimulationAntiviral AgentsCatalytic DomainDatabases, ChemicalDEAD-box RNA HelicasesDrug DesignHepacivirusHigh-Throughput Screening AssaysMolecular Docking SimulationNucleoside-TriphosphataseProtease InhibitorsSerine EndopeptidasesUser-Computer InterfaceViral Nonstructural ProteinsViral ProteasesAntiviral AgentsDEAD-box RNA HelicasesNS3 protein, hepatitis C virusNS4 protein, hepatitis C virusNucleoside-TriphosphataseProtease InhibitorsSerine EndopeptidasesViral Nonstructural ProteinsViral Proteases

Identifiers

PMID24551230
PMCPMC3923879
OpenAlexW1998212728

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.