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A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking

Protein–ligand docking is a molecular modeling technique that is used to predict the conformation of a small molecular ligand at the binding pocket of a protein receptor. There are many protein–ligand docking tools, among which AutoDock Vina is the most popular open-source docking software. In recen...

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Autores principales: Lin, Hang, Siu, Shirley W. I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6214097/
https://www.ncbi.nlm.nih.gov/pubmed/30326669
http://dx.doi.org/10.3390/ijms19103181
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author Lin, Hang
Siu, Shirley W. I.
author_facet Lin, Hang
Siu, Shirley W. I.
author_sort Lin, Hang
collection PubMed
description Protein–ligand docking is a molecular modeling technique that is used to predict the conformation of a small molecular ligand at the binding pocket of a protein receptor. There are many protein–ligand docking tools, among which AutoDock Vina is the most popular open-source docking software. In recent years, there have been numerous attempts to optimize the search process in AutoDock Vina by means of heuristic optimization methods, such as genetic and particle swarm optimization algorithms. This study, for the first time, explores the use of cuckoo search (CS) to solve the protein–ligand docking problem. The result of this study is CuckooVina, an enhanced conformational search algorithm that hybridizes cuckoo search with differential evolution (DE). Extensive tests using two benchmark datasets, PDBbind 2012 and Astex Diverse set, show that CuckooVina improves the docking performances in terms of RMSD, binding affinity, and success rate compared to Vina though it requires about 9–15% more time to complete a run than Vina. CuckooVina predicts more accurate docking poses with higher binding affinities than PSOVina with similar success rates. CuckooVina’s slower convergence but higher accuracy suggest that it is better able to escape from local energy minima and improves the problem of premature convergence. As a summary, our results assure that the hybrid CS–DE process to continuously generate diverse solutions is a good strategy to maintain the proper balance between global and local exploitation required for the ligand conformational search.
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spelling pubmed-62140972018-11-14 A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking Lin, Hang Siu, Shirley W. I. Int J Mol Sci Article Protein–ligand docking is a molecular modeling technique that is used to predict the conformation of a small molecular ligand at the binding pocket of a protein receptor. There are many protein–ligand docking tools, among which AutoDock Vina is the most popular open-source docking software. In recent years, there have been numerous attempts to optimize the search process in AutoDock Vina by means of heuristic optimization methods, such as genetic and particle swarm optimization algorithms. This study, for the first time, explores the use of cuckoo search (CS) to solve the protein–ligand docking problem. The result of this study is CuckooVina, an enhanced conformational search algorithm that hybridizes cuckoo search with differential evolution (DE). Extensive tests using two benchmark datasets, PDBbind 2012 and Astex Diverse set, show that CuckooVina improves the docking performances in terms of RMSD, binding affinity, and success rate compared to Vina though it requires about 9–15% more time to complete a run than Vina. CuckooVina predicts more accurate docking poses with higher binding affinities than PSOVina with similar success rates. CuckooVina’s slower convergence but higher accuracy suggest that it is better able to escape from local energy minima and improves the problem of premature convergence. As a summary, our results assure that the hybrid CS–DE process to continuously generate diverse solutions is a good strategy to maintain the proper balance between global and local exploitation required for the ligand conformational search. MDPI 2018-10-15 /pmc/articles/PMC6214097/ /pubmed/30326669 http://dx.doi.org/10.3390/ijms19103181 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lin, Hang
Siu, Shirley W. I.
A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking
title A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking
title_full A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking
title_fullStr A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking
title_full_unstemmed A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking
title_short A Hybrid Cuckoo Search and Differential Evolution Approach to Protein–Ligand Docking
title_sort hybrid cuckoo search and differential evolution approach to protein–ligand docking
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6214097/
https://www.ncbi.nlm.nih.gov/pubmed/30326669
http://dx.doi.org/10.3390/ijms19103181
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