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A balance-evolution artificial bee colony algorithm for protein structure optimization based on a three-dimensional AB off-lattice model

Paper ID Volume ID Publish Year Pages File Format Full-Text
15099 1375 2015 12 PDF Available
Title
A balance-evolution artificial bee colony algorithm for protein structure optimization based on a three-dimensional AB off-lattice model
Abstract

•We propose a novel BE-ABC algorithm for protein structure optimization.•The algorithm uses convergence information to manipulate its search intensity.•An overall degradation procedure is introduced as a self-adaptive measure.•Both artificial (Fibonacci) and real amino-acid sequences are optimized.•Results obtained by BE-ABC are the best in the majority of the cases tested.

Protein structure prediction is a fundamental issue in the field of computational molecular biology. In this paper, the AB off-lattice model is adopted to transform the original protein structure prediction scheme into a numerical optimization problem. We present a balance-evolution artificial bee colony (BE-ABC) algorithm to address the problem, with the aim of finding the structure for a given protein sequence with the minimal free-energy value. This is achieved through the use of convergence information during the optimization process to adaptively manipulate the search intensity. Besides that, an overall degradation procedure is introduced as part of the BE-ABC algorithm to prevent premature convergence. Comprehensive simulation experiments based on the well-known artificial Fibonacci sequence set and several real sequences from the database of Protein Data Bank have been carried out to compare the performance of BE-ABC against other algorithms. Our numerical results show that the BE-ABC algorithm is able to outperform many state-of-the-art approaches and can be effectively employed for protein structure optimization.

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Keywords
Protein structure optimization; Amino-acid sequences; AB off-lattice model; Balance-evolution artificial bee colony algorithm
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A balance-evolution artificial bee colony algorithm for protein structure optimization based on a three-dimensional AB off-lattice model
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Publisher
Database: Elsevier - ScienceDirect
Journal: Computational Biology and Chemistry - Volume 54, February 2015, Pages 1–12
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us