A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structure

Abstract Long noncoding RNAs (lncRNAs) regulate many biological processes by interacting with corresponding RNA-binding proteins. The identification of lncRNA–protein Interactions (LPIs) is significantly important to well characterize the biological functions and mechanisms of lncRNAs. Existing comp...

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Main Authors: Xiongfei Tian, Ling Shen, Zhenwu Wang, Liqian Zhou, Lihong Peng
Format: Article
Language:English
Published: Nature Portfolio 2021-09-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-98277-1
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author Xiongfei Tian
Ling Shen
Zhenwu Wang
Liqian Zhou
Lihong Peng
author_facet Xiongfei Tian
Ling Shen
Zhenwu Wang
Liqian Zhou
Lihong Peng
author_sort Xiongfei Tian
collection DOAJ
description Abstract Long noncoding RNAs (lncRNAs) regulate many biological processes by interacting with corresponding RNA-binding proteins. The identification of lncRNA–protein Interactions (LPIs) is significantly important to well characterize the biological functions and mechanisms of lncRNAs. Existing computational methods have been effectively applied to LPI prediction. However, the majority of them were evaluated only on one LPI dataset, thereby resulting in prediction bias. More importantly, part of models did not discover possible LPIs for new lncRNAs (or proteins). In addition, the prediction performance remains limited. To solve with the above problems, in this study, we develop a Deep Forest-based LPI prediction method (LPIDF). First, five LPI datasets are obtained and the corresponding sequence information of lncRNAs and proteins are collected. Second, features of lncRNAs and proteins are constructed based on four-nucleotide composition and BioSeq2vec with encoder-decoder structure, respectively. Finally, a deep forest model with cascade forest structure is developed to find new LPIs. We compare LPIDF with four classical association prediction models based on three fivefold cross validations on lncRNAs, proteins, and LPIs. LPIDF obtains better average AUCs of 0.9012, 0.6937 and 0.9457, and the best average AUPRs of 0.9022, 0.6860, and 0.9382, respectively, for the three CVs, significantly outperforming other methods. The results show that the lncRNA FTX may interact with the protein P35637 and needs further validation.
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spelling doaj.art-a0acb30f0ee4466cabc1620b344531dd2022-12-21T21:52:33ZengNature PortfolioScientific Reports2045-23222021-09-0111111510.1038/s41598-021-98277-1A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structureXiongfei Tian0Ling Shen1Zhenwu Wang2Liqian Zhou3Lihong Peng4School of Computer Science, Hunan University of TechnologySchool of Computer Science, Hunan University of TechnologySchool of Computer Science, Hunan University of TechnologySchool of Computer Science, Hunan University of TechnologySchool of Computer Science, Hunan University of TechnologyAbstract Long noncoding RNAs (lncRNAs) regulate many biological processes by interacting with corresponding RNA-binding proteins. The identification of lncRNA–protein Interactions (LPIs) is significantly important to well characterize the biological functions and mechanisms of lncRNAs. Existing computational methods have been effectively applied to LPI prediction. However, the majority of them were evaluated only on one LPI dataset, thereby resulting in prediction bias. More importantly, part of models did not discover possible LPIs for new lncRNAs (or proteins). In addition, the prediction performance remains limited. To solve with the above problems, in this study, we develop a Deep Forest-based LPI prediction method (LPIDF). First, five LPI datasets are obtained and the corresponding sequence information of lncRNAs and proteins are collected. Second, features of lncRNAs and proteins are constructed based on four-nucleotide composition and BioSeq2vec with encoder-decoder structure, respectively. Finally, a deep forest model with cascade forest structure is developed to find new LPIs. We compare LPIDF with four classical association prediction models based on three fivefold cross validations on lncRNAs, proteins, and LPIs. LPIDF obtains better average AUCs of 0.9012, 0.6937 and 0.9457, and the best average AUPRs of 0.9022, 0.6860, and 0.9382, respectively, for the three CVs, significantly outperforming other methods. The results show that the lncRNA FTX may interact with the protein P35637 and needs further validation.https://doi.org/10.1038/s41598-021-98277-1
spellingShingle Xiongfei Tian
Ling Shen
Zhenwu Wang
Liqian Zhou
Lihong Peng
A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structure
Scientific Reports
title A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structure
title_full A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structure
title_fullStr A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structure
title_full_unstemmed A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structure
title_short A novel lncRNA–protein interaction prediction method based on deep forest with cascade forest structure
title_sort novel lncrna protein interaction prediction method based on deep forest with cascade forest structure
url https://doi.org/10.1038/s41598-021-98277-1
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