PreprintCited by 9Antimicrobial Peptides and ActivitiesMicrobial Natural Products and BiosynthesisComputational Drug Discovery Methods

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Mining the UniProtKB/Swiss-Prot database for antimicrobial peptides

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Preprint — published as 10.1002/pro.70083 · Paper page

Abstract

The ever-growing global health threat of antibiotic resistance is compelling researchers to explore alternatives to conventional antibiotics. Antimicrobial peptides (AMPs) are emerging as a promising solution to fill this need. Naturally occurring AMPs are produced by all forms of life as part of the innate immune system. High-throughput bioinformatics tools have enabled fast and large-scale discovery of AMPs from genomic, transcriptomic, and proteomic resources of selected organisms. Public protein sequence databases, comprising over 200 million records and growing, serve as comprehensive compendia of sequences from a broad range of source organisms. Yet, large-scale in silico probing of those databases for novel AMPs has never been reported. In the present study, we propose an AMP mining workflow to predict novel AMPs from the UniProtKB/Swiss-Prot database using the AMP prediction tool, AMPlify, as its discovery engine. Using this workflow, we identified 8,008 novel putative AMPs from all eukaryotic sequences in the database. Focusing on the practical use of AMPs as suitable antimicrobial agents with applications in the poultry industry, we prioritized 40 of those AMPs based on their similarities to known chicken AMPs in predicted structures. In our tests, 13 out of the 38 successfully synthesized peptides showed antimicrobial activity against Escherichia coli and/or Staphylococcus aureus .

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Metadata

Authors
Li, C., Sutherland, D., Salehi, A., Richter, A., Lin, D., Aninta, S. I., Ebrahimikondori, H., Yanai, A., Coombe, L., Warren, R. L., Kotkoff, M., Hoang, L. M. N., Helbing, C. C., & Birol, I.
Affiliations
  • BC Cancer Agency (CA)
  • University of British Columbia (CA)
  • University of Victoria (CA)
Venue
Protein Science
Publisher
openRxiv
Published
2024-05-29
Volume
34
Issue
4
Pages
e70083-e70083
ISSN
0961-8368 (ISSN-L)
OpenAlex
W4408538820
Cited by
9
References
1
Citations by year
2026: 5 · 2025: 3 · 2024: 1
FWCI
4.38
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Protein Science (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Genome Canada (291PEP)
  • Genome British Columbia (291PEP)
  • Investment Agriculture Foundation (INV106)
Topics
  • Life Sciences › Immunology and Microbiology › Microbiology › Antimicrobial Peptides and Activities
  • Life Sciences › Immunology and Microbiology › Applied Microbiology and Biotechnology › Microbial Natural Products and Biosynthesis
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Drug Discovery › Computational Drug Discovery Methods
Keywords
antimicrobial peptides, UniProtKB/Swiss-Prot, antibiotic resistance, eukaryotic proteins, poultry, Escherichia coli, Staphylococcus aureus, peptide synthesis, innate immunity
MeSH terms
Antimicrobial Peptides, Animals, Anti-Bacterial Agents, Chickens, Staphylococcus aureus, Computational Biology, Databases, Protein, Data Mining

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