Potential inhibitors of SARS-CoV-2 (COVID 19) proteases PLpro and Mpro/ 3CLpro: molecular docking and simulation studies of three pertinent medicinal plant natural components

Potential inhibitors of SARS-CoV-2 (COVID 19) proteases PLpro and Mpro/ 3CLpro: molecular docking and simulation studies of three pertinent medicinal plant natural components

Blog Article

The rapid spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) - coronavirus disease 2019 (COVID-19) has raised a severe global public health issue and creates a pandemic situation.The present work aims to study the molecular -docking and dynamic of three pertinent medicinal plants i.e.Eurycoma harmandiana, Sophora flavescens and Andrographis paniculata phyto-compounds against SARS-COV-2 papain-like protease (PLpro) and main protease (Mpro)/3-chymotrypsin-like protease (3CLpro).

The interaction of protein targets and ligands was performed through AutoDock-Vina visualized google pixel 7 freedom using PyMOL and BIOVIA-Discovery Studio 2020.Molecular docking with canthin-6-one 9-O-beta-glucopyranoside showed highest binding affinity and less binding energy with both PLpro and Mpro/3CLpro proteases and was subjected to molecular dynamic (MD) simulations for a period of 100ns.Stability of the protein-ligand complexes was evaluated by different analyses.The binding free energy calculated using MM-PBSA and the results showed that the molecule must have stable interactions with the protein binding site.

ADMET analysis of the compounds suggested that it is argan oil pure purple having drug-like properties like high gastrointestinal (GI) absorption, no blood-brain barrier permeability and high lipophilicity.The outcome revealed that canthin-6-one 9-O-beta-glucopyranoside can be used as a potential natural drug against COVID-19 protease.