4.7 Article

The applications of deep learning algorithms on in silico druggable proteins identification

期刊

JOURNAL OF ADVANCED RESEARCH
卷 41, 期 -, 页码 219-231

出版社

ELSEVIER
DOI: 10.1016/j.jare.2022.01.009

关键词

Druggable protein; Convolutional neural network; Recurrent neural network; Bidirectional long short-term memory; Deep neural network; Model visualization

资金

  1. National Natural Science Foundation of China [[2021]021]
  2. Natural Science Foundation of Department of Education of Guizhou Province [2020LZXNYDJ39]
  3. Luzhou Municipal People's Government
  4. Southwest Medical University
  5. [21803045]

向作者/读者索取更多资源

This study focuses on the practical applications of deep learning algorithms for predicting druggable proteins and proposes a powerful predictor for fast and accurate identification of potential drug targets.
Introduction: The top priority in drug development is to identify novel and effective drug targets. In vitro assays are frequently used for this purpose; however, traditional experimental approaches are insufficient for large-scale exploration of novel drug targets, as they are expensive, time-consuming and laborious. Therefore, computational methods have emerged in recent decades as an alternative to aid experimental drug discovery studies by developing sophisticated predictive models to estimate unknown drugs/compounds and their targets. The recent success of deep learning (DL) techniques in machine learning and artificial intelligence has further attracted a great deal of attention in the biomedicine field, including computational drug discovery.Objectives: This study focuses on the practical applications of deep learning algorithms for predicting druggable proteins and proposes a powerful predictor for fast and accurate identification of potential drug targets.Methods: Using a gold-standard dataset, we explored several typical protein features and different deep learning algorithms and evaluated their performance in a comprehensive way. We provide an overview of the entire experimental process, including protein features and descriptors, neural network architec-tures, libraries and toolkits for deep learning modelling, performance evaluation metrics, model interpre-tation and visualization.Results: Experimental results show that the hybrid model (architecture: CNN-RNN (BiLSTM) + DNN; fea-ture: dictionary encoding + DC_TC_CTD) performed better than the other models on the benchmark data -set. This hybrid model was able to achieve 90.0% accuracy and 0.800 MCC on the test dataset and 84.8% and 0.703 on a nonredundant independent test dataset, which is comparable to those of existing meth-ods.Conclusion: We developed the first deep learning-based classifier for fast and accurate identification of potential druggable proteins. We hope that this study will be helpful for future researchers who would like to use deep learning techniques to develop relevant predictive models. (c) 2022 The Authors. Published by Elsevier B.V. on behalf of Cairo University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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