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Letters in Drug Design & Discovery

Editor-in-Chief

ISSN (Print): 1570-1808
ISSN (Online): 1875-628X

Letter Article

Virtual Compound Screening and Molecular Dynamics to Identify New Inhibitors for Human Glutathione Reductase

Author(s): Mohsen Sargolzaei*

Volume 17, Issue 12, 2020

Page: [1465 - 1474] Pages: 10

DOI: 10.2174/1570180817999200724174003

Price: $65

Abstract

Background: Oxidative stress is a defense mechanism against malarial intracellular parasite infection. On the other hand, the Human glutathione reductase enzyme reduces oxidative stress in the cells, making the inhibitors of this enzyme a promising candidate for malaria treatment.

Objective: Rational drug design was used in this work to plan new human glutathione reductase inhibitors.

Methods: Virtual screening was performed using the ZINC database and molecular docking was used to detect appropriate human glutathione reductase inhibitors. Based on the docking scores obtained, the top three highest-ranked ligands were selected for the molecular dynamics simulation study. The MD simulation was performed for each complex in a length of 100 ns.

Results: RMSD, RMSF and hydrogen bond analyzes were performed on the derived trajectories. Molecular mechanics generalized born surface area (MM-GBSA) and pairwise per-residue free energy decomposition analyzes were performed for the determination of binding free energy and the determination of dominant residues involved in the binding process, respectively. The binding free energy analysis showed that the molecule of 3-((7-(furan-2-ylmethyl)-5,6-diphenyl-7H-pyrrolo[2,3- d] pyrimidin-4-yl) amino) propan-1-ol is the most potent inhibitor among the molecules considered against human glutathione reductase enzyme.

Conclusion: This molecule can be considered a novel candidate for antimalarial treatments.

Keywords: Malaria, binding affinity, MD, reduced glutathione, oxidative stress, MM-GBSA.

Graphical Abstract

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