Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding Affinity

In silico studies were performed to assess the binding affinity of selected organophosphorus compounds toward the acetylcholinesterase enzyme (AChE). Quantum mechanical calculations, molecular docking, and molecular dynamics (MD) with molecular mechanics Generalized–Born surface area (MM/GBSA) were...

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Main Authors: Rafal Madaj, Bartłomiej Gostyński, Arkadiusz Chworos, Marek Cypryk
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/29/2/338
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author Rafal Madaj
Bartłomiej Gostyński
Arkadiusz Chworos
Marek Cypryk
author_facet Rafal Madaj
Bartłomiej Gostyński
Arkadiusz Chworos
Marek Cypryk
author_sort Rafal Madaj
collection DOAJ
description In silico studies were performed to assess the binding affinity of selected organophosphorus compounds toward the acetylcholinesterase enzyme (AChE). Quantum mechanical calculations, molecular docking, and molecular dynamics (MD) with molecular mechanics Generalized–Born surface area (MM/GBSA) were applied to assess quantitatively differences between the binding energies of acetylcholine (ACh; the natural agonist of AChE) and neurotoxic, synthetic correlatives (so-called “Novichoks”, and selected compounds from the G- and V-series). Several additional quantitative descriptors like root-mean-square fluctuation (RMSF) and the solvent accessible surface area (SASA) were briefly discussed to give—to the best of our knowledge—the first quantitative in silico description of AChE—Novichok non-covalent binding process and thus facilitate the search for an efficient and effective treatment for Novichok intoxication and in a broader sense—intoxication with other warfare nerve agents as well.
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spelling doaj.art-857b90efc08243caba40679ef364867c2024-01-29T14:07:40ZengMDPI AGMolecules1420-30492024-01-0129233810.3390/molecules29020338Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding AffinityRafal Madaj0Bartłomiej Gostyński1Arkadiusz Chworos2Marek Cypryk3Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, PolandCentre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, PolandCentre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, PolandCentre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, PolandIn silico studies were performed to assess the binding affinity of selected organophosphorus compounds toward the acetylcholinesterase enzyme (AChE). Quantum mechanical calculations, molecular docking, and molecular dynamics (MD) with molecular mechanics Generalized–Born surface area (MM/GBSA) were applied to assess quantitatively differences between the binding energies of acetylcholine (ACh; the natural agonist of AChE) and neurotoxic, synthetic correlatives (so-called “Novichoks”, and selected compounds from the G- and V-series). Several additional quantitative descriptors like root-mean-square fluctuation (RMSF) and the solvent accessible surface area (SASA) were briefly discussed to give—to the best of our knowledge—the first quantitative in silico description of AChE—Novichok non-covalent binding process and thus facilitate the search for an efficient and effective treatment for Novichok intoxication and in a broader sense—intoxication with other warfare nerve agents as well.https://www.mdpi.com/1420-3049/29/2/338NovichokAChEDFTbinding affinity
spellingShingle Rafal Madaj
Bartłomiej Gostyński
Arkadiusz Chworos
Marek Cypryk
Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding Affinity
Molecules
Novichok
AChE
DFT
binding affinity
title Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding Affinity
title_full Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding Affinity
title_fullStr Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding Affinity
title_full_unstemmed Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding Affinity
title_short Novichok Nerve Agents as Inhibitors of Acetylcholinesterase—In Silico Study of Their Non-Covalent Binding Affinity
title_sort novichok nerve agents as inhibitors of acetylcholinesterase in silico study of their non covalent binding affinity
topic Novichok
AChE
DFT
binding affinity
url https://www.mdpi.com/1420-3049/29/2/338
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