A novel methodology on distributed representations of proteins using their interacting ligands.
A novel methodology on distributed representations of proteins using their interacting ligands.
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DOI:
10.1093/bioinformatics/bty287
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发表时间:
2018-07-01
期刊:
影响因子:
--
通讯作者:
Özgür A
中科院分区:
文献类型:
--
作者:
Öztürk H;Ozkirimli E;Özgür A
The effective representation of proteins is a crucial task that directly affects the performance of many bioinformatics problems. Related proteins usually bind to similar ligands. Chemical characteristics of ligands are known to capture the functional and mechanistic properties of proteins suggesting that a ligand-based approach can be utilized in protein representation. In this study, we propose SMILESVec, a Simplified molecular input line entry system (SMILES)-based method to represent ligands and a novel method to compute similarity of proteins by describing them based on their ligands. The proteins are defined utilizing the word-embeddings of the SMILES strings of their ligands. The performance of the proposed protein description method is evaluated in protein clustering task using TransClust and MCL algorithms. Two other protein representation methods that utilize protein sequence, Basic local alignment tool and ProtVec, and two compound fingerprint-based protein representation methods are compared. We showed that ligand-based protein representation, which uses only SMILES strings of the ligands that proteins bind to, performs as well as protein sequence-based representation methods in protein clustering. The results suggest that ligand-based protein description can be an alternative to the traditional sequence or structure-based representation of proteins and this novel approach can be applied to different bioinformatics problems such as prediction of new protein–ligand interactions and protein function annotation. https://github.com/hkmztrk/SMILESVecProteinRepresentation Supplementary data are available at Bioinformatics online.
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影响因子:
14.9
作者:
Davies M;Nowotka M;Papadatos G;Dedman N;Gaulton A;Atkinson F;Bellis L;Overington JP
通讯作者:
Overington JP
影响因子:
3
作者:
Cao, D. -S.;Zhao, J. -C.;Liang, Y. -Z.
通讯作者:
Liang, Y. -Z.
DOI:
10.1093/bioinformatics/btt547
发表时间:
2013-12-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Cokelaer T;Pultz D;Harder LM;Serra-Musach J;Saez-Rodriguez J
通讯作者:
Saez-Rodriguez J
影响因子:
3.7
作者:
Asgari E;Mofrad MR
通讯作者:
Mofrad MR
影响因子:
4.6
作者:
Jain, Rinku;Choudhury, Jayati Roy;Aggarwal, Aneel K.
通讯作者:
Aggarwal, Aneel K.