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Prediction of DNA-binding residues from sequence information using convolutional neural network
by Jiyun Zhou; Qin Lu; Ruifeng Xu; Lin Gui; Hongpeng Wang
International Journal of Data Mining and Bioinformatics (IJDMB), Vol. 17, No. 2, 2017

 

Abstract: Most DNA-binding residue prediction methods overlooked the motif features which are important for the recognition between protein and DNA. In order to efficiently use the motif features for prediction, we first propose to use Convolutional Neural Network (CNN) in deep learning to extract discriminant motif features. We then propose a neural network classifier, referred to as CNNsite, by combining the extracted motif features, sequence features and evolutionary features. The evaluation on PDNA-62, PDNA-224 and TR-265 shows that motif features perform better than sequence features and evolutionary features. The evaluation on PDNA-62, PDNA-224 and an independent data set shows that CNNsite also outperforms the previous methods. We also show that many motif features composed by the residues which play important roles in DNA-protein interactions have large discriminant powers. It indicates that CNNsite has very good ability to extract important motif features for DNA-binding residue prediction.

Online publication date: Sat, 20-May-2017

 

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