CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand docking

Structure prediction of protein–ligand complexes, called protein–ligand docking, is a critical computational technique that can be used to understand the underlying principle behind the protein functions at the atomic level and to design new molecules regulating the functions. Protein-ligand docking...

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Main Authors: Sohee Kwon, Chaok Seok
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:Computational and Structural Biotechnology Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2001037022005414
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author Sohee Kwon
Chaok Seok
author_facet Sohee Kwon
Chaok Seok
author_sort Sohee Kwon
collection DOAJ
description Structure prediction of protein–ligand complexes, called protein–ligand docking, is a critical computational technique that can be used to understand the underlying principle behind the protein functions at the atomic level and to design new molecules regulating the functions. Protein-ligand docking methods have been employed in structure-based drug discovery for hit discovery and lead optimization. One of the important technical challenges in protein–ligand docking is to account for protein conformational changes induced by ligand binding. A small change such as a single side-chain rotation upon ligand binding can hinder accurate docking. Here we report an increase in docking performance achieved by structure alignment to known complex structures. First, a fully flexible compound-to-compound alignment method CSAlign is developed by global optimization of a shape score. Next, the alignment method is combined with a docking algorithm to dock a new ligand to a target protein when a reference protein–ligand complex structure is available. This alignment-based docking method, called CSAlign-Dock, showed superior performance to ab initio docking methods in cross-docking benchmark tests. Both CSAlign and CSAlign-Dock are freely available as a web server at https://galaxy.seoklab.org/csalign.
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spelling doaj.art-3d8f5bd0e38d4635aebedf6fef116a262023-12-21T07:30:14ZengElsevierComputational and Structural Biotechnology Journal2001-03702023-01-0121110CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand dockingSohee Kwon0Chaok Seok1Department of Chemistry, Seoul National University, Seoul 08826, South Korea; Galux Inc, Seoul 08738, South KoreaDepartment of Chemistry, Seoul National University, Seoul 08826, South Korea; Galux Inc, Seoul 08738, South Korea; Corresponding author.Structure prediction of protein–ligand complexes, called protein–ligand docking, is a critical computational technique that can be used to understand the underlying principle behind the protein functions at the atomic level and to design new molecules regulating the functions. Protein-ligand docking methods have been employed in structure-based drug discovery for hit discovery and lead optimization. One of the important technical challenges in protein–ligand docking is to account for protein conformational changes induced by ligand binding. A small change such as a single side-chain rotation upon ligand binding can hinder accurate docking. Here we report an increase in docking performance achieved by structure alignment to known complex structures. First, a fully flexible compound-to-compound alignment method CSAlign is developed by global optimization of a shape score. Next, the alignment method is combined with a docking algorithm to dock a new ligand to a target protein when a reference protein–ligand complex structure is available. This alignment-based docking method, called CSAlign-Dock, showed superior performance to ab initio docking methods in cross-docking benchmark tests. Both CSAlign and CSAlign-Dock are freely available as a web server at https://galaxy.seoklab.org/csalign.http://www.sciencedirect.com/science/article/pii/S2001037022005414Structure alignmentProtein–ligand dockingVirtual screeningStructure-based drug discovery
spellingShingle Sohee Kwon
Chaok Seok
CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand docking
Computational and Structural Biotechnology Journal
Structure alignment
Protein–ligand docking
Virtual screening
Structure-based drug discovery
title CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand docking
title_full CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand docking
title_fullStr CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand docking
title_full_unstemmed CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand docking
title_short CSAlign and CSAlign-Dock: Structure alignment of ligands considering full flexibility and application to protein–ligand docking
title_sort csalign and csalign dock structure alignment of ligands considering full flexibility and application to protein ligand docking
topic Structure alignment
Protein–ligand docking
Virtual screening
Structure-based drug discovery
url http://www.sciencedirect.com/science/article/pii/S2001037022005414
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AT chaokseok csalignandcsaligndockstructurealignmentofligandsconsideringfullflexibilityandapplicationtoproteinliganddocking