Computational modeling of the bat HKU4 coronavirus 3CLpro inhibitors as a tool for the development of antivirals against the emerging Middle East respiratory syndrome (MERS) coronavirus.
Identifieur interne : 000E50 ( Main/Exploration ); précédent : 000E49; suivant : 000E51Computational modeling of the bat HKU4 coronavirus 3CLpro inhibitors as a tool for the development of antivirals against the emerging Middle East respiratory syndrome (MERS) coronavirus.
Auteurs : Areej Abuhammad [Jordanie] ; Rua'A A. Al-Aqtash [Jordanie] ; Brandon J. Anson [États-Unis] ; Andrew D. Mesecar [États-Unis] ; Mutasem O. Taha [Jordanie]Source :
- Journal of molecular recognition : JMR [ 1099-1352 ] ; 2017.
Descripteurs français
- KwdFr :
- Animaux, Antiviraux (pharmacologie), Chiroptera (virologie), Coronavirus du syndrome respiratoire du Moyen-Orient (), Courbe ROC, Inhibiteurs de protéases (), Inhibiteurs de protéases (pharmacologie), Ligands, Modèles moléculaires, Protéines virales (), Protéines virales (antagonistes et inhibiteurs), Relation quantitative structure-activité, Reproductibilité des résultats, Simulation numérique, Sites de fixation, Séquence d'acides aminés.
- MESH :
- antagonistes et inhibiteurs : Protéines virales.
- pharmacologie : Antiviraux, Inhibiteurs de protéases.
- virologie : Chiroptera.
- Animaux, Coronavirus du syndrome respiratoire du Moyen-Orient, Courbe ROC, Inhibiteurs de protéases, Ligands, Modèles moléculaires, Protéines virales, Relation quantitative structure-activité, Reproductibilité des résultats, Simulation numérique, Sites de fixation, Séquence d'acides aminés.
English descriptors
- KwdEn :
- Amino Acid Sequence, Animals, Antiviral Agents (pharmacology), Betacoronavirus (drug effects), Betacoronavirus (enzymology), Binding Sites, Chiroptera (virology), Computer Simulation, Ligands, Middle East Respiratory Syndrome Coronavirus (drug effects), Models, Molecular, Protease Inhibitors (chemistry), Protease Inhibitors (pharmacology), Quantitative Structure-Activity Relationship, ROC Curve, Reproducibility of Results, Viral Proteins (antagonists & inhibitors), Viral Proteins (chemistry).
- MESH :
- chemical , antagonists & inhibitors : Viral Proteins.
- chemical , chemistry : Protease Inhibitors, Viral Proteins.
- chemical , pharmacology : Antiviral Agents, Protease Inhibitors.
- drug effects : Betacoronavirus, Middle East Respiratory Syndrome Coronavirus.
- enzymology : Betacoronavirus.
- virology : Chiroptera.
- Amino Acid Sequence, Animals, Binding Sites, Computer Simulation, Ligands, Models, Molecular, Quantitative Structure-Activity Relationship, ROC Curve, Reproducibility of Results.
Abstract
The Middle East respiratory syndrome coronavirus (MERS-CoV) is an emerging virus that poses a major challenge to clinical management. The 3C-like protease (3CLpro ) is essential for viral replication and thus represents a potential target for antiviral drug development. Presently, very few data are available on MERS-CoV 3CLpro inhibition by small molecules. We conducted extensive exploration of the pharmacophoric space of a recently identified set of peptidomimetic inhibitors of the bat HKU4-CoV 3CLpro . HKU4-CoV 3CLpro shares high sequence identity (81%) with the MERS-CoV enzyme and thus represents a potential surrogate model for anti-MERS drug discovery. We used 2 well-established methods: Quantitative structure-activity relationship (QSAR)-guided modeling and docking-based comparative intermolecular contacts analysis. The established pharmacophore models highlight structural features needed for ligand recognition and revealed important binding-pocket regions involved in 3CLpro -ligand interactions. The best models were used as 3D queries to screen the National Cancer Institute database for novel nonpeptidomimetic 3CLpro inhibitors. The identified hits were tested for HKU4-CoV and MERS-CoV 3CLpro inhibition. Two hits, which share the phenylsulfonamide fragment, showed moderate inhibitory activity against the MERS-CoV 3CLpro and represent a potential starting point for the development of novel anti-MERS agents. To the best of our knowledge, this is the first pharmacophore modeling study supported by in vitro validation on the MERS-CoV 3CLpro .
DOI: 10.1002/jmr.2644
PubMed: 28608547
Affiliations:
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<term>Betacoronavirus (enzymology)</term>
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<front><div type="abstract" xml:lang="en">The Middle East respiratory syndrome coronavirus (MERS-CoV) is an emerging virus that poses a major challenge to clinical management. The 3C-like protease (3CL<sup>pro</sup>
) is essential for viral replication and thus represents a potential target for antiviral drug development. Presently, very few data are available on MERS-CoV 3CL<sup>pro</sup>
inhibition by small molecules. We conducted extensive exploration of the pharmacophoric space of a recently identified set of peptidomimetic inhibitors of the bat HKU4-CoV 3CL<sup>pro</sup>
. HKU4-CoV 3CL<sup>pro</sup>
shares high sequence identity (81%) with the MERS-CoV enzyme and thus represents a potential surrogate model for anti-MERS drug discovery. We used 2 well-established methods: Quantitative structure-activity relationship (QSAR)-guided modeling and docking-based comparative intermolecular contacts analysis. The established pharmacophore models highlight structural features needed for ligand recognition and revealed important binding-pocket regions involved in 3CL<sup>pro</sup>
-ligand interactions. The best models were used as 3D queries to screen the National Cancer Institute database for novel nonpeptidomimetic 3CL<sup>pro</sup>
inhibitors. The identified hits were tested for HKU4-CoV and MERS-CoV 3CL<sup>pro</sup>
inhibition. Two hits, which share the phenylsulfonamide fragment, showed moderate inhibitory activity against the MERS-CoV 3CL<sup>pro</sup>
and represent a potential starting point for the development of novel anti-MERS agents. To the best of our knowledge, this is the first pharmacophore modeling study supported by in vitro validation on the MERS-CoV 3CL<sup>pro</sup>
.</div>
</front>
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<name sortKey="Taha, Mutasem O" sort="Taha, Mutasem O" uniqKey="Taha M" first="Mutasem O" last="Taha">Mutasem O. Taha</name>
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<country name="États-Unis"><region name="Indiana"><name sortKey="Anson, Brandon J" sort="Anson, Brandon J" uniqKey="Anson B" first="Brandon J" last="Anson">Brandon J. Anson</name>
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