Identification of Antimicrobial Peptides from Macroalgae with Machine Learning

Michela Caprani, Orla Slattery, Joan O’Keeffe, John Healy

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Antimicrobial peptides (AMPs) are essential components of innate host defense showing a broad spectrum of activity against bacteria, viruses, fungi, and multi-resistant pathogens. Despite their diverse nature, with high sequence similarities in distantly related mammals, invertebrate and plant species, their presence and functional roles in marine macroalgae remain largely unexplored. In recent years, computational tools have successfully predicted and identified encoded AMPs sourced from ubiquitous dual-functioning proteins, including histones and ribosomes, in various aquatic species. In this paper, a computational design is presented that uses machine learning classifiers, artificial neural networks and random forests, to identify putative AMPs in macroalgae. 42,213 protein sequences from five macroalgae were processed by the classifiers which identified 24 putative AMPs. While initial testing with AMP databases positively identifies these sequences as AMPs, an absolute determination cannot be made without in vitro extraction and purification techniques. If confirmed, these AMPs will be the first-ever identified in macroalgae.

Original languageEnglish
Title of host publicationPractical Applications of Computational Biology and Bioinformatics, 14th International Conference, PACBB 2020
EditorsGabriella Panuccio, Miguel Rocha, Florentino Fdez-Riverola, Mohd Saberi Mohamad, Roberto Casado-Vara
PublisherSpringer
Pages1-11
Number of pages11
ISBN (Print)9783030545673
DOIs
Publication statusPublished - 2021
Event14th International Conference on Practical Applications of Computational Biology and Bioinformatics, PACBB 2020 - L´Aquila, Italy
Duration: 17 Jun 202019 Jun 2020

Publication series

NameAdvances in Intelligent Systems and Computing
Volume1240 AISC
ISSN (Print)2194-5357
ISSN (Electronic)2194-5365

Conference

Conference14th International Conference on Practical Applications of Computational Biology and Bioinformatics, PACBB 2020
Country/TerritoryItaly
CityL´Aquila
Period17/06/2019/06/20

Keywords

  • Antimicrobial peptides
  • Machine learning classifiers
  • Macroalgae
  • Pseudo Amino Acid Composition (PseAAC)

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