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2020 ; 27
(10
): 2674-2682
Nephropedia Template TP
gab.com Text
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English Wikipedia
In silico screening of FDA approved drugs reveals ergotamine and
dihydroergotamine as potential coronavirus main protease enzyme inhibitors
#MMPMID32837219
Gurung AB
; Ali MA
; Lee J
; Abul Farah M
; Al-Anazi KM
Saudi J Biol Sci
2020[Oct]; 27
(10
): 2674-2682
PMID32837219
show ga
Coronaviruses with the largest viral genomes are positive-sense RNA viruses
associated with a history of global epidemics such as the severe respiratory
syndrome (SARS), the Middle East respiratory syndrome (MERS) and recently the
coronavirus disease 2019 (COVID-19). There has been no vaccines or drugs
available for the treatment of human coronavirus infections to date. In the
present study, we have explored the possibilities of FDA approved drugs as
potential inhibitors of the coronavirus main protease, a therapeutically
important drug target playing a salient role in the maturation and processing of
the viral polyproteins and are vital for viral replication and transcription. We
have used molecular docking approach and have successfully identified the best
lead molecules for each enzyme target. Interestingly, the anti-migraine drugs
such as ergotamine and its derivative, dihydroergotamine were found to bind to
all the three target enzymes within the Cys-His catalytic dyad cleft with lower
binding energies as compared to the control inhibitors (?-ketoamide 13b, SG85 and
GC813) and the molecules are held within the pocket through a good number of
hydrogen bonds and hydrophobic interactions. Hence both these lead molecules can
be further taken for wet-lab experimentation studies before repurposing them as
anti-coronaviral drug candidates.