De Novo Protein Subcellular Localization Prediction by N-to-1 Neural Networks

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Title: De Novo Protein Subcellular Localization Prediction by N-to-1 Neural Networks
Authors: Mooney, CatherineWang, Yong-HongPollastri, Gianluca
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Date: 18-Sep-2010
Online since: 2021-05-28T15:05:19Z
Abstract: Knowledge of the subcellular location of a protein provides valuable information about its function and possible interaction with other proteins. In the post-genomic era, fast and accurate predictors of subcellular location are required if this abundance of sequence data is to be fully exploited. We have developed a subcellular localization predictor (SCL pred) which predicts the location of a protein into four classes for animals and fungi and five classes for plants (secretory pathway, cytoplasm, nucleus, mitochondrion and chloroplast) using high throughput machine learning techniques trained on large non-redundant sets of protein sequences. The algorithm powering SCL pred is a novel Neural Network (N-to-1 Neural Network, or N1-NN) which is capable of mapping whole sequences into single properties (a functional class, in this work) without resorting to predefined transformations, but rather by adaptively compressing the sequence into a hidden feature vector. We benchmark SCL pred against other publicly available predictors using two benchmarks including a new subset of Swiss-Prot release 57. We show that SCL pred compares favourably to the other state-of-the-art predictors. Moreover, the N1-NN algorithm is fully general and may be applied to a host of problems of similar shape, that is, in which a whole sequence needs to be mapped into a fixed-size array of properties, and the adaptive compression it operates may even shed light on the space of protein sequences.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: Springer
Series/Report no.: Lecture Notes in Computer Science; 6685
Copyright (published version): 2011 Springer
Keywords: Support vector machineSecretory pathwayChloroplast transit peptideWoLF PSORTBinary SVMs
DOI: 10.1007/978-3-642-21946-7_3
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Language: en
Status of Item: Peer reviewed
Is part of: Rizzo, R. and Lisboa, P. J. G. (eds.). Computational Intelligence Methods for Bioinformatics and Biostatistics: 7th International Meeting, CIBB 2010, Palermo, Italy, September 16-18, 2010, Revised Selected Papers
Conference Details: The 7th International Meeting on Computational Intelligence Methods for Bioinformatics and Biostatistics (CIBB 2010), Palermo, Italy, 16-18 September 2010
ISBN: 978-3-642-21945-0
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Appears in Collections:Computer Science Research Collection
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