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2021 ; 39
(10
): 3760-3770
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Identification of phytochemical inhibitors against main protease of COVID-19
using molecular modeling approaches
#MMPMID32448034
Kumar A
; Choudhir G
; Shukla SK
; Sharma M
; Tyagi P
; Bhushan A
; Rathore M
J Biomol Struct Dyn
2021[Jul]; 39
(10
): 3760-3770
PMID32448034
show ga
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is a novel corona
virus that causes corona virus disease 2019 (COVID-19). The COVID-19 rapidly
spread across the nations with high mortality rate even as very little is known
to contain the virus at present. In the current study, we report novel natural
metabolites namely, ursolic acid, carvacrol and oleanolic acid as the potential
inhibitors against main protease (M(pro)) of COVID-19 by using integrated
molecular modeling approaches. From a combination of molecular docking and
molecular dynamic (MD) simulations, we found three ligands bound to protease
during 50?ns of MD simulations. Furthermore, the molecular
mechanic/generalized/Born/Poisson-Boltzmann surface area (MM/G/P/BSA) free energy
calculations showed that these chemical molecules have stable and favourable
energies causing strong binding with binding site of M(pro) protein. All these
three molecules, namely, ursolic acid, carvacrol and oleanolic acid, have passed
the ADME (Absorption, Distribution, Metabolism, and Excretion) property as well
as Lipinski's rule of five. The study provides a basic foundation and suggests
that the three phytochemicals, viz. ursolic acid, carvacrol and oleanolic acid
could serve as potential inhibitors in regulating the M(pro) protein's function
and controlling viral replication. Communicated by Ramaswamy H. Sarma.