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Computational investigations of potential inhibitors of monkeypox virus envelope protein E8 through molecular docking and molecular dynamics simulations
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Computational investigations of potential inhibitors of monkeypox virus envelope protein E8 through molecular docking and molecular dynamics simulations
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Journal Article
Computational investigations of potential inhibitors of monkeypox virus envelope protein E8 through molecular docking and molecular dynamics simulations
2024
Overview
The World Health Organization (WHO) has declared the monkeypox outbreak a public health emergency, as there is no specific therapeutics for monkeypox virus (MPXV) disease. This study focused on docking various commercial drugs and plant-derived compounds against the E8 envelope protein crucial for MPXV attachment and pathogenesis. The target protein structure was modeled based on the vaccinia virus D8L protein. Notably, maraviroc and punicalagin emerged as potential ligands, with punicalagin exhibiting higher binding affinity (− 9.1 kcal/mol) than maraviroc (− 7.8 kcal/mol). Validation through 100 ns molecular dynamics (MD) simulations demonstrated increased stability of the E8-punicalagin complex, with lower RMSD, RMSF, and Rg compared to maraviroc. Enhanced hydrogen bonding, lower solvent accessibility, and compact motions also attributed to higher binding affinity and stability of the complex. MM-PBSA calculations revealed van der Waals, electrostatic, and non-polar solvation as principal stabilizing energies. The binding energy decomposition per residue favored stable interactions between punicalagin and the protein’s active site residues (Arg20, Phe56, Glu228, Tyr232) compared to maraviroc. Overall study suggests that punicalagin can act as a potent inhibitor against MPXV. Further research and experimental investigations are warranted to validate its efficacy and safety.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 631/154
/ 631/57
/ Affinity
/ Antiviral Agents - chemistry
/ Antiviral Agents - pharmacology
/ Humanities and Social Sciences
/ Hydrolyzable Tannins - chemistry
/ Hydrolyzable Tannins - metabolism
/ Hydrolyzable Tannins - pharmacology
/ Molecular Docking Simulation
/ Molecular Dynamics Simulation
/ Molecular dynamics simulations
/ Monkeypox virus - metabolism
/ Mpox
/ MPXV
/ Proteins
/ Science
/ Viral Envelope Proteins - antagonists & inhibitors
/ Viral Envelope Proteins - chemistry
/ Viral Envelope Proteins - metabolism
/ Viruses
