期刊
BRIEFINGS IN BIOINFORMATICS
卷 23, 期 1, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/bib/bbab360
关键词
lncRNA; subcellular localization prediction; deep learning; subsequence embedding
资金
- National Natural Science Foundation of China [62102457]
- Hunan Provincial Science and Technology Program [2019CB1007]
This study presents a deep learning framework, DeepLncLoc, for predicting the subcellular localization of lncRNAs. By introducing a novel subsequence embedding method, DeepLncLoc retains the order information of lncRNA sequences and utilizes a text convolutional neural network for high-level feature learning and prediction. Compared to traditional methods, DeepLncLoc shows improved performance.
Long non-coding RNAs (lncRNAs) are a class of RNA molecules with more than 200 nucleotides. A growing amount of evidence reveals that subcellular localization of lncRNAs can provide valuable insights into their biological functions. Existing computational methods for predicting lncRNA subcellular localization use k-mer features to encode lncRNA sequences. However, the sequence order information is lost by using only k-mer features. We proposed a deep learning framework, DeepLncLoc, to predict lncRNA subcellular localization. In DeepLncLoc, we introduced a new subsequence embedding method that keeps the order information of lncRNA sequences. The subsequence embedding method first divides a sequence into some consecutive subsequences and then extracts the patterns of each subsequence, last combines these patterns to obtain a complete representation of the lncRNA sequence. After that, a text convolutional neural network is employed to learn high-level features and perform the prediction task. Compared with traditional machine learning models, popular representation methods and existing predictors, DeepLncLoc achieved better performance, which shows that DeepLncLoc could effectively predict lncRNA subcellular localization. Our study not only presented a novel computational model for predicting lncRNA subcellular localization but also introduced a new subsequence embedding method which is expected to be applied in other sequence-based prediction tasks. The DeepLncLoc web server is freely accessible at http://bioinformatics.csu.edu.cn/DeepLncLoc/, and source code and datasets can be downloaded from https://github.com/CSUBioGroup/DeepLncLoc..
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