A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein Trimers

Study of interface residue pairs is important for understanding the interactions between monomers inside a trimer protein–protein complex. We developed a two-layer support vector machine (SVM) ensemble-classifier that considers physicochemical and geometric properties of amino acids and the influenc...

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Main Authors: Yanfen Lyu, Xinqi Gong
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/25/19/4353
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author Yanfen Lyu
Xinqi Gong
author_facet Yanfen Lyu
Xinqi Gong
author_sort Yanfen Lyu
collection DOAJ
description Study of interface residue pairs is important for understanding the interactions between monomers inside a trimer protein–protein complex. We developed a two-layer support vector machine (SVM) ensemble-classifier that considers physicochemical and geometric properties of amino acids and the influence of surrounding amino acids. Different descriptors and different combinations may give different prediction results. We propose feature combination engineering based on correlation coefficients and F-values. The accuracy of our method is 65.38% in independent test set, indicating biological significance. Our predictions are consistent with the experimental results. It shows the effectiveness and reliability of our method to predict interface residue pairs of protein trimers.
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spelling doaj.art-bc0a8db67a434d6f857dc9338b459cfb2023-11-20T14:44:05ZengMDPI AGMolecules1420-30492020-09-012519435310.3390/molecules25194353A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein TrimersYanfen Lyu0Xinqi Gong1Mathematical Intelligence Application Lab, Institute for Mathematical Sciences, School of Math, Renmin University of China, Beijing 100872, ChinaMathematical Intelligence Application Lab, Institute for Mathematical Sciences, School of Math, Renmin University of China, Beijing 100872, ChinaStudy of interface residue pairs is important for understanding the interactions between monomers inside a trimer protein–protein complex. We developed a two-layer support vector machine (SVM) ensemble-classifier that considers physicochemical and geometric properties of amino acids and the influence of surrounding amino acids. Different descriptors and different combinations may give different prediction results. We propose feature combination engineering based on correlation coefficients and F-values. The accuracy of our method is 65.38% in independent test set, indicating biological significance. Our predictions are consistent with the experimental results. It shows the effectiveness and reliability of our method to predict interface residue pairs of protein trimers.https://www.mdpi.com/1420-3049/25/19/4353a two-layer SVM ensemble-classifiertrimer protein–protein complexesfeature combination engineering
spellingShingle Yanfen Lyu
Xinqi Gong
A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein Trimers
Molecules
a two-layer SVM ensemble-classifier
trimer protein–protein complexes
feature combination engineering
title A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein Trimers
title_full A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein Trimers
title_fullStr A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein Trimers
title_full_unstemmed A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein Trimers
title_short A Two-Layer SVM Ensemble-Classifier to Predict Interface Residue Pairs of Protein Trimers
title_sort two layer svm ensemble classifier to predict interface residue pairs of protein trimers
topic a two-layer SVM ensemble-classifier
trimer protein–protein complexes
feature combination engineering
url https://www.mdpi.com/1420-3049/25/19/4353
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AT xinqigong atwolayersvmensembleclassifiertopredictinterfaceresiduepairsofproteintrimers
AT yanfenlyu twolayersvmensembleclassifiertopredictinterfaceresiduepairsofproteintrimers
AT xinqigong twolayersvmensembleclassifiertopredictinterfaceresiduepairsofproteintrimers