Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic Approach

Optimization of lead structures is crucial for drug discovery. However, the accuracy of such a prediction using the traditional molecular docking approach remains a major concern. Our study demonstrates that the employment of quantum crystallographic approach-counterpoise corrected kernel energy met...

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Main Authors: Suman Kumar Mandal, Parthapratim Munshi
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/9/2605
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author Suman Kumar Mandal
Parthapratim Munshi
author_facet Suman Kumar Mandal
Parthapratim Munshi
author_sort Suman Kumar Mandal
collection DOAJ
description Optimization of lead structures is crucial for drug discovery. However, the accuracy of such a prediction using the traditional molecular docking approach remains a major concern. Our study demonstrates that the employment of quantum crystallographic approach-counterpoise corrected kernel energy method (KEM-CP) can improve the accuracy by and large. We select human aldose reductase at 0.66 Å, cyclin dependent kinase 2 at 2.0 Å and estrogen receptor β at 2.7 Å resolutions with active site environment ranging from highly hydrophilic to moderate to highly hydrophobic and several of their known ligands. Overall, the use of KEM-CP alongside the GoldScore resulted superior prediction than the GoldScore alone. Unlike GoldScore, the KEM-CP approach is neither environment-specific nor structural resolution dependent, which highlights its versatility. Further, the ranking of the ligands based on the KEM-CP results correlated well with that of the experimental IC<sub>50</sub> values. This computationally inexpensive yet simple approach is expected to ease the process of virtual screening of potent ligands, and it would advance the drug discovery research.
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spelling doaj.art-76bf1e1888624557baaa71ab3f1389cc2023-11-21T17:47:55ZengMDPI AGMolecules1420-30492021-04-01269260510.3390/molecules26092605Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic ApproachSuman Kumar Mandal0Parthapratim Munshi1Chemical and Biological Crystallography, Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri 201314, Uttar Pradesh, IndiaChemical and Biological Crystallography, Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri 201314, Uttar Pradesh, IndiaOptimization of lead structures is crucial for drug discovery. However, the accuracy of such a prediction using the traditional molecular docking approach remains a major concern. Our study demonstrates that the employment of quantum crystallographic approach-counterpoise corrected kernel energy method (KEM-CP) can improve the accuracy by and large. We select human aldose reductase at 0.66 Å, cyclin dependent kinase 2 at 2.0 Å and estrogen receptor β at 2.7 Å resolutions with active site environment ranging from highly hydrophilic to moderate to highly hydrophobic and several of their known ligands. Overall, the use of KEM-CP alongside the GoldScore resulted superior prediction than the GoldScore alone. Unlike GoldScore, the KEM-CP approach is neither environment-specific nor structural resolution dependent, which highlights its versatility. Further, the ranking of the ligands based on the KEM-CP results correlated well with that of the experimental IC<sub>50</sub> values. This computationally inexpensive yet simple approach is expected to ease the process of virtual screening of potent ligands, and it would advance the drug discovery research.https://www.mdpi.com/1420-3049/26/9/2605lead structuremolecular dockingscoring functionkernel energy methodquantum crystallographyprotein-ligand interaction
spellingShingle Suman Kumar Mandal
Parthapratim Munshi
Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic Approach
Molecules
lead structure
molecular docking
scoring function
kernel energy method
quantum crystallography
protein-ligand interaction
title Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic Approach
title_full Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic Approach
title_fullStr Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic Approach
title_full_unstemmed Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic Approach
title_short Predicting Accurate Lead Structures for Screening Molecular Libraries: A Quantum Crystallographic Approach
title_sort predicting accurate lead structures for screening molecular libraries a quantum crystallographic approach
topic lead structure
molecular docking
scoring function
kernel energy method
quantum crystallography
protein-ligand interaction
url https://www.mdpi.com/1420-3049/26/9/2605
work_keys_str_mv AT sumankumarmandal predictingaccurateleadstructuresforscreeningmolecularlibrariesaquantumcrystallographicapproach
AT parthapratimmunshi predictingaccurateleadstructuresforscreeningmolecularlibrariesaquantumcrystallographicapproach