Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure prediction

Abstract Background Fragment libraries play a key role in fragment-assembly based protein structure prediction, where protein fragments are assembled to form a complete three-dimensional structure. Rich and accurate structural information embedded in fragment libraries has not been systematically ex...

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Main Authors: Siyuan Liu, Tong Wang, Qijiang Xu, Bin Shao, Jian Yin, Tie-Yan Liu
Format: Article
Language:English
Published: BMC 2021-06-01
Series:BMC Bioinformatics
Subjects:
Online Access:https://doi.org/10.1186/s12859-021-04258-6
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author Siyuan Liu
Tong Wang
Qijiang Xu
Bin Shao
Jian Yin
Tie-Yan Liu
author_facet Siyuan Liu
Tong Wang
Qijiang Xu
Bin Shao
Jian Yin
Tie-Yan Liu
author_sort Siyuan Liu
collection DOAJ
description Abstract Background Fragment libraries play a key role in fragment-assembly based protein structure prediction, where protein fragments are assembled to form a complete three-dimensional structure. Rich and accurate structural information embedded in fragment libraries has not been systematically extracted and used beyond fragment assembly. Methods To better leverage the valuable structural information for protein structure prediction, we extracted seven types of structural information from fragment libraries. We broadened the usage of such structural information by transforming fragment libraries into protein-specific potentials for gradient-descent based protein folding and encoding fragment libraries as structural features for protein property prediction. Results Fragment libraires improved the accuracy of protein folding and outperformed state-of-the-art algorithms with respect to predicted properties, such as torsion angles and inter-residue distances. Conclusion Our work implies that the rich structural information extracted from fragment libraries can complement sequence-derived features to help protein structure prediction.
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spelling doaj.art-8b6dd7d6b7254d8893022d791c36cdd22022-12-21T19:59:26ZengBMCBMC Bioinformatics1471-21052021-06-0122111810.1186/s12859-021-04258-6Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure predictionSiyuan Liu0Tong Wang1Qijiang Xu2Bin Shao3Jian Yin4Tie-Yan Liu5School of Data and Computer Science, Sun Yat-Sen UniversityMicrosoft Research AsiaMicrosoft Research AsiaMicrosoft Research AsiaSchool of Data and Computer Science, Sun Yat-Sen UniversityMicrosoft Research AsiaAbstract Background Fragment libraries play a key role in fragment-assembly based protein structure prediction, where protein fragments are assembled to form a complete three-dimensional structure. Rich and accurate structural information embedded in fragment libraries has not been systematically extracted and used beyond fragment assembly. Methods To better leverage the valuable structural information for protein structure prediction, we extracted seven types of structural information from fragment libraries. We broadened the usage of such structural information by transforming fragment libraries into protein-specific potentials for gradient-descent based protein folding and encoding fragment libraries as structural features for protein property prediction. Results Fragment libraires improved the accuracy of protein folding and outperformed state-of-the-art algorithms with respect to predicted properties, such as torsion angles and inter-residue distances. Conclusion Our work implies that the rich structural information extracted from fragment libraries can complement sequence-derived features to help protein structure prediction.https://doi.org/10.1186/s12859-021-04258-6Fragment libraryStructural informationProtein property predictionProtein folding
spellingShingle Siyuan Liu
Tong Wang
Qijiang Xu
Bin Shao
Jian Yin
Tie-Yan Liu
Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure prediction
BMC Bioinformatics
Fragment library
Structural information
Protein property prediction
Protein folding
title Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure prediction
title_full Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure prediction
title_fullStr Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure prediction
title_full_unstemmed Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure prediction
title_short Complementing sequence-derived features with structural information extracted from fragment libraries for protein structure prediction
title_sort complementing sequence derived features with structural information extracted from fragment libraries for protein structure prediction
topic Fragment library
Structural information
Protein property prediction
Protein folding
url https://doi.org/10.1186/s12859-021-04258-6
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AT qijiangxu complementingsequencederivedfeatureswithstructuralinformationextractedfromfragmentlibrariesforproteinstructureprediction
AT binshao complementingsequencederivedfeatureswithstructuralinformationextractedfromfragmentlibrariesforproteinstructureprediction
AT jianyin complementingsequencederivedfeatureswithstructuralinformationextractedfromfragmentlibrariesforproteinstructureprediction
AT tieyanliu complementingsequencederivedfeatureswithstructuralinformationextractedfromfragmentlibrariesforproteinstructureprediction