DEEPre: sequence-based enzyme EC number prediction by deep learning

Yu Li, sheng wang, Ramzan Umarov, Bingqing Xie, Ming Fan, Lihua Li, Xin Gao

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Annotation of enzyme function has a broad range of applications, such as metagenomics, industrial biotechnology, and diagnosis of enzyme deficiency-caused diseases. However, the time and resource required make it prohibitively expensive to experimentally determine the function of every enzyme. Therefore, computational enzyme function prediction has become increasingly important. In this paper, we develop such an approach, determining the enzyme function by predicting the Enzyme Commission number.We propose an end-to-end feature selection and classification model training approach, as well as an automatic and robust feature dimensionality uniformization method, DEEPre, in the field of enzyme function prediction. Instead of extracting manuallycrafted features from enzyme sequences, our model takes the raw sequence encoding as inputs, extracting convolutional and sequential features from the raw encoding based on the classification result to directly improve the prediction performance. The thorough cross-fold validation experiments conducted on two large-scale datasets show that DEEPre improves the prediction performance over the previous state-of-the-art methods. In addition, our server outperforms five other servers in determining the main class of enzymes on a separate low-homology dataset. Two case studies demonstrate DEEPre's ability to capture the functional difference of enzyme isoforms.The server could be accessed freely at http://www.cbrc.kaust.edu.sa/DEEPre.
Original languageEnglish (US)
Pages (from-to)760-769
Number of pages10
JournalBioinformatics
Volume34
Issue number5
DOIs
StatePublished - Oct 23 2017

Fingerprint Dive into the research topics of 'DEEPre: sequence-based enzyme EC number prediction by deep learning'. Together they form a unique fingerprint.

Cite this