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A New Multi-label Classifier for Identifying the Functional Types of Singleplex and Multiplex Antimicrobial Peptides

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Abstract

Antimicrobial peptides (AMPs) play an important role in the innate immune system that evolved in most living organisms. As a kind of natural antibiotics, it is promising for solving the problem of increasing antibiotic resistance. In view of this, it is highly desired to develop a fast and effective computational method for accurately predicting the functional types of AMPs, because the biological functions of AMPs are correlated with the type it belongs to. Although many efforts have been made in this area, to the best of our knowledge, most of the existing predictors only has the ability to deal with whether a peptide is an AMP or not, or a peptide belongs to which one type. However, there are many AMPs have two or more functional types, the phenomenon should worthy of our special notice, because they may have some unique biological functions for new drug design and disease treatment. In this study, in order to reflect the characteristic of multiplex AMPs, a new multi-label classifier based on sequence information and multi-label learning with label-specific features (LIFT) algorithm was developed. It was observed that, the absolute-true with jackknife test by the new predictor on a newly stringent benchmark dataset is 0.5040, and the success rates achieved by the new predictor are 5 % higher than this by iAMP-2L in the same dataset, indicating that our method is quite promising. We hope that the predictor may become a useful high-through tool in identifying the functional types of AMPs.

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Authors and Affiliations

  1. Department of Mechanical and Electronic Information Engineering, Jiangxi University of Applied Science, Nanchang, 330100, China

    Hong-Liang Zou

  2. Computer Department, Jing-De-Zhen Ceramic Institute, Jing-De-Zhen, 333046, China

    Hong-Liang Zou

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  1. Hong-Liang Zou
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Correspondence to Hong-Liang Zou.

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Zou, HL. A New Multi-label Classifier for Identifying the Functional Types of Singleplex and Multiplex Antimicrobial Peptides. Int J Pept Res Ther 22, 281–287 (2016). https://doi.org/10.1007/s10989-015-9511-7

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  • DOI: https://doi.org/10.1007/s10989-015-9511-7

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