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:: Volume 30, Issue 4 (10-2022) ::
Journal of Ilam University of Medical Sciences 2022, 30(4): 66-85 Back to browse issues page
Efficacy Evaluation of Quercetin and Its Analogues on the Main Protease Enzyme of the COVID-19 Using Molecular Docking Studies
Tooba Abdizadeh *
Clinical Biochemistry Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran , abdizadeh.t@skums.ac.ir
Abstract:   (831 Views)
Introduction: COVID-19 is an acute respiratory infectious disease caused by the SARS-CoV-2 virus. There is an urgent need to discover antiviral drugs for better performance against new strains of coronaviruses (CoVs) due to the rapid spread of the disease despite scientific advances in vaccine development. This study aimed to evaluate the efficacy of quercetin and its analogues on the COVID-19 Mpro enzyme.
Material & Methods: In this descriptive-analytical study, the three-dimensional structures of quercetin analogues (20 compounds), standard drugs (ritonavir and lopinavir), and the COVID-19 Mpro enzyme were obtained from PubChem and PDB databases for bioinformatics study, respectively. Molecular docking studies of the compounds on the
Mpro were performed using MOE-2014 software. Afterward, the physicochemical properties and biological activity of the compounds were predicted using Swiss ADME, PASS, and Swiss Target Prediction software.

Findings: The findings of the present study showed that the most important bonds involved in drug-receptor binding are hydrogen, hydrophobic, and π-π interaction bonds. The best docking results were obtained for Baicalein, Genistein, Naringenin, and Quercetin compounds with strong binding energy (-12.83 to -13.54 kcal/mol), compared to ritonavir and lopinavir. These compounds have a greater tendency to bind to the catalytic amino acids His41 and Cys145 and other key amino acids of the active site of the COVID-19 Mpro enzyme.
Discussion & Conclusion: Based on the results of bioinformatics studies, quercetin analogues had more effective inhibition than standard chemical drugs due to their suitable placement in the active site of the main protease enzyme of COVID-19 and can be good candidates for in vitro and in vivo studies.

Keywords: SARS-CoV-2, Flavonoid, Bioinformatics Studies, Physicochemical properties
Full-Text [PDF 1815 kb]   (557 Downloads)    
Type of Study: Research | Subject: Natural Resources
Received: 2022/04/3 | Accepted: 2022/05/16 | Published: 2022/10/7
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Abdizadeh T. Efficacy Evaluation of Quercetin and Its Analogues on the Main Protease Enzyme of the COVID-19 Using Molecular Docking Studies. J. Ilam Uni. Med. Sci. 2022; 30 (4) :66-85
URL: http://sjimu.medilam.ac.ir/article-1-7530-en.html

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Volume 30, Issue 4 (10-2022) Back to browse issues page
مجله دانشگاه علوم پزشکی ایلام Journal of Ilam University of Medical Sciences
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