4.7 Review

Applications of density functional theory in COVID-19 drug modeling

Journal

DRUG DISCOVERY TODAY
Volume 27, Issue 5, Pages 1411-1419

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.drudis.2021.12.017

Keywords

COVID-19; SARS-CoV-2; Quantum mechanics; Density functional theory; Rational drug design; Molecular modeling; QM/MM; Molecular mechanics

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This article reviews the recent advances in using density functional theory (DFT) in molecular modeling studies of COVID-19 pharmaceuticals. It provides an overview of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) drugs and targets, introduces the basic principles and application methods of DFT, discusses different approaches of applying DFT, and highlights important factors to consider when incorporating DFT in future drug modeling research.
The rapidly evolving Coronavirus 2019 (COVID-19) pandemic has led to millions of deaths around the world, highlighting the pressing need to develop effective antiviral pharmaceuticals. Recent efforts with computer-aided rational drug discovery have allowed detailed examination of drug- macromolecule interactions primarily by molecular mechanics (MM) techniques. Less widely applied in COVID-19 drug modeling is density functional theory (DFT), a quantum mechanics (QM) method that enables electronic structure calculations and elucidations of reaction mechanisms. Here, we review recent advances in applying DFT in molecular modeling studies of COVID-19 pharmaceuticals. We start by providing an overview of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) drugs and targets, followed by a brief introduction to DFT. We then provide a discussion of different approaches by which DFT has been applied. Finally, we discuss essential factors to consider when incorporating DFT in future drug modeling research.

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