Prediction of protein residue contacts using discriminative random field
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概要
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Understanding interaction between proteins provides a clue to the mechanisms of protein function. Protein residues at interacting sites have co-evolved with those at the corresponding residues in the partner protein to keep their interactions. Therefore, mutual information between residues calculated from multiple sequence alignments of homologous proteins is considered to be useful for identifying contact residues in interacting proteins. The discriminative random field (DRF) is a special type of conditional random fields and can recognize some specific characteristic regions in an image. Since the matrix consisted of correlation between residues can be regarded as an image, we propose a prediction method for protein residue contacts using DRF models with correlation scores between residues based on mutual information. In this work, we perform computational experiments for several interactions between Pfam domains and discuss the results.
- 2011-11-24
著者
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Tatsuya Akutsu
Bioinformatics Center, Institute for Chemical Research, Kyoto University
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Morihiro Hayashida
Bioinformatics Center Institute For Chemical Research Kyoto University
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Jiangning Song
Bioinformatics Center Institute For Chemical Research Kyoto University | Department Of Biochemistry
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Tatsuya Akutsu
Bioinformatics Center Institute For Chemical Research Kyoto University
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Jiangning Song
Department Of Biochemistry And Molecular Biology Monash University Australia|tianjin Institute Of In
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Tatsuya Akutsu
Bioinformatics Center Institute For Chemical Research Kyoto Univerty
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Mayumi Kamada
Bioinformatics Center Institute For Chemical Research Kyoto University
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