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2020 ; 12
(3
): 335-348
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gab.com Text
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English Wikipedia
Phylogenetic Analysis and Structural Perspectives of RNA-Dependent RNA-Polymerase
Inhibition from SARs-CoV-2 with Natural Products
#MMPMID32617855
Khan A
; Khan M
; Saleem S
; Babar Z
; Ali A
; Khan AA
; Sardar Z
; Hamayun F
; Ali SS
; Wei DQ
Interdiscip Sci
2020[Sep]; 12
(3
): 335-348
PMID32617855
show ga
Most recently, an outbreak of severe pneumonia caused by the infection of
SARS-CoV-2, a novel coronavirus first identified in Wuhan, China, imposes serious
threats to public health. Upon infecting host cells, coronaviruses assemble a
multi-subunit RNA-synthesis complex of viral non-structural proteins (nsp)
responsible for the replication and transcription of the viral genome. Therefore,
the role and inhibition of nsp12 are indispensable. A cryo-EM structure of RdRp
from SARs-CoV-2 was used to identify novel drugs from Northern South African
medicinal compounds database (NANPDB) by using computational virtual screening
and molecular docking approaches. Considering Remdesivir as the control, 42
compounds were shortlisted to have docking score better than Remdesivir. The top
5 hits were validated by using molecular dynamics simulation approach and free
energy calculations possess strong inhibitory properties than the Remdesivir.
Thus, this study paved a way for designing novel drugs by decoding the
architecture of an important enzyme and its inhibition with compounds from
natural resources. This disclosing of necessary knowledge regarding the screening
and the identification of top hits could help to design effective therapeutic
candidates against the coronaviruses and design robust preventive measurements.