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Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus

The African Swine Fever virus (ASFV) causes an infectious viral disease in pigs of all ages. The development of antiviral drugs primarily aimed at inhibition of proteases required for the proteolysis of viral polyproteins. In this study, the conformation of the pS273R protease in physiological state...

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Autores principales: Lu, Gen, Ou, Kang, Zhang, Yihan, Zhang, Huan, Feng, Shouhua, Yang, Zuofeng, Sun, Guo, Liu, Jinling, Wei, Shu, Pan, Shude, Chen, Zeliang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9866604/
https://www.ncbi.nlm.nih.gov/pubmed/36677630
http://dx.doi.org/10.3390/molecules28020570
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author Lu, Gen
Ou, Kang
Zhang, Yihan
Zhang, Huan
Feng, Shouhua
Yang, Zuofeng
Sun, Guo
Liu, Jinling
Wei, Shu
Pan, Shude
Chen, Zeliang
author_facet Lu, Gen
Ou, Kang
Zhang, Yihan
Zhang, Huan
Feng, Shouhua
Yang, Zuofeng
Sun, Guo
Liu, Jinling
Wei, Shu
Pan, Shude
Chen, Zeliang
author_sort Lu, Gen
collection PubMed
description The African Swine Fever virus (ASFV) causes an infectious viral disease in pigs of all ages. The development of antiviral drugs primarily aimed at inhibition of proteases required for the proteolysis of viral polyproteins. In this study, the conformation of the pS273R protease in physiological states were investigated, virtually screened the multi-protein conformation of pS273R target proteins, combined various molecular docking scoring functions, and identified five potential drugs from the Food and Drug Administration drug library that may inhibit pS273R. Subsequent validation of the dynamic interactions of pS273R with the five putative inhibitors was achieved using molecular dynamics simulations and binding free energy calculations using the molecular mechanics/Poison-Boltzmann (Generalized Born) (MM/PB(GB)SA) surface area. These findings demonstrate that the arm domain and Thr159-Lys167 loop region of pS273R are significantly more flexible compared to the core structural domain, and the Thr159-Lys167 loop region can serve as a “gatekeeper” in the substrate channel. Leucovorin, Carboprost, Protirelin, Flavin Mononucleotide, and Lovastatin Acid all have Gibbs binding free energies with pS273R that were less than −20 Kcal/mol according to the MM/PBSA analyses. In contrast to pS273R in the free energy landscape, the inhibitor and drug complexes of pS273R showed distinct structural group distributions. These five drugs may be used as potential inhibitors of pS273R and may serve as future drug candidates for treating ASFV.
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spelling pubmed-98666042023-01-22 Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus Lu, Gen Ou, Kang Zhang, Yihan Zhang, Huan Feng, Shouhua Yang, Zuofeng Sun, Guo Liu, Jinling Wei, Shu Pan, Shude Chen, Zeliang Molecules Article The African Swine Fever virus (ASFV) causes an infectious viral disease in pigs of all ages. The development of antiviral drugs primarily aimed at inhibition of proteases required for the proteolysis of viral polyproteins. In this study, the conformation of the pS273R protease in physiological states were investigated, virtually screened the multi-protein conformation of pS273R target proteins, combined various molecular docking scoring functions, and identified five potential drugs from the Food and Drug Administration drug library that may inhibit pS273R. Subsequent validation of the dynamic interactions of pS273R with the five putative inhibitors was achieved using molecular dynamics simulations and binding free energy calculations using the molecular mechanics/Poison-Boltzmann (Generalized Born) (MM/PB(GB)SA) surface area. These findings demonstrate that the arm domain and Thr159-Lys167 loop region of pS273R are significantly more flexible compared to the core structural domain, and the Thr159-Lys167 loop region can serve as a “gatekeeper” in the substrate channel. Leucovorin, Carboprost, Protirelin, Flavin Mononucleotide, and Lovastatin Acid all have Gibbs binding free energies with pS273R that were less than −20 Kcal/mol according to the MM/PBSA analyses. In contrast to pS273R in the free energy landscape, the inhibitor and drug complexes of pS273R showed distinct structural group distributions. These five drugs may be used as potential inhibitors of pS273R and may serve as future drug candidates for treating ASFV. MDPI 2023-01-06 /pmc/articles/PMC9866604/ /pubmed/36677630 http://dx.doi.org/10.3390/molecules28020570 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lu, Gen
Ou, Kang
Zhang, Yihan
Zhang, Huan
Feng, Shouhua
Yang, Zuofeng
Sun, Guo
Liu, Jinling
Wei, Shu
Pan, Shude
Chen, Zeliang
Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus
title Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus
title_full Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus
title_fullStr Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus
title_full_unstemmed Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus
title_short Structural Analysis, Multi-Conformation Virtual Screening and Molecular Simulation to Identify Potential Inhibitors Targeting pS273R Proteases of African Swine Fever Virus
title_sort structural analysis, multi-conformation virtual screening and molecular simulation to identify potential inhibitors targeting ps273r proteases of african swine fever virus
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9866604/
https://www.ncbi.nlm.nih.gov/pubmed/36677630
http://dx.doi.org/10.3390/molecules28020570
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