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Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 SAR+QSAR+Environ+Res 2021 ; 32 (1): 51-70 Nephropedia Template TP
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Using in silico modelling and FRET-based assays in the discovery of novel FDA-approved drugs as inhibitors of MERS-CoV helicase #MMPMID33401979
Mehyar N; Mashhour A; Islam I; Gul S; Adedeji AO; Askar AS; Boudjelal M
SAR QSAR Environ Res 2021[Jan]; 32 (1): 51-70 PMID33401979show ga
A Forster resonance energy transfer (FRET)-based assay was used to screen the FDA-approved compound library against the MERS-CoV helicase, an essential enzyme for virus replication within the host cell. Five compounds inhibited the helicase activity with submicromolar potencies (IC(50), 0.73-1.65 microM) and ten compounds inhibited the enzyme with micromolar potencies (IC(50), 19.6-502 microM). The molecular operating environment (MOE) was used to dock the identified inhibitors on the MERS-CoV helicase nucleotide binding. Strong inhibitors docked well in the nucleotide-binding site and established interactions with some of the essential residues. There was a reasonable correlation between the observed IC(50) values and the MOE docking scores of the strong inhibitors (r (2) = 0.74), indicating the ability of the in silico docking model to predict the binding of strong inhibitors. In silico docking could be a useful complementary tool used with the FRET-based assay to predict new MERS-CoV helicase inhibitors. The identified inhibitors could potentially be used in the clinical development of new antiviral treatment for MERS-CoV and other coronavirus related diseases, including coronavirus disease 2019 (COVID-19).