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Discovery of antimicrobial peptides in the global microbiome with machine learning

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Item Type:Article
Title:Discovery of antimicrobial peptides in the global microbiome with machine learning
Creators Name:Santos-Júnior, C.D., Torres, M.D.T., Duan, Y., Rodríguez Del Río, Á., Schmidt, T.S.B., Chong, H., Fullam, A., Kuhn, M., Zhu, C., Houseman, A., Somborski, J., Vines, A., Zhao, X.M., Bork, P., Huerta-Cepas, J., de la Fuente-Nunez, C. and Coelho, L.P.
Abstract:Novel antibiotics are urgently needed to combat the antibiotic-resistance crisis. We present a machine-learning-based approach to predict antimicrobial peptides (AMPs) within the global microbiome and leverage a vast dataset of 63,410 metagenomes and 87,920 prokaryotic genomes from environmental and host-associated habitats to create the AMPSphere, a comprehensive catalog comprising 863,498 non-redundant peptides, few of which match existing databases. AMPSphere provides insights into the evolutionary origins of peptides, including by duplication or gene truncation of longer sequences, and we observed that AMP production varies by habitat. To validate our predictions, we synthesized and tested 100 AMPs against clinically relevant drug-resistant pathogens and human gut commensals both in vitro and in vivo. A total of 79 peptides were active, with 63 targeting pathogens. These active AMPs exhibited antibacterial activity by disrupting bacterial membranes. In conclusion, our approach identified nearly one million prokaryotic AMP sequences, an open-access resource for antibiotic discovery.
Keywords:Machine Learning, Metagenomics, Antimicrobial Peptides, Antibiotic Discovery, Antimicrobial Activity, Global Microbiome, Antibiotic Resistance, Animals, Mice
Source:Cell
ISSN:0092-8674
Publisher:Cell Press
Volume:187
Number:14
Page Range:3761-3778
Date:11 July 2024
Official Publication:https://doi.org/10.1016/j.cell.2024.05.013
PubMed:View item in PubMed

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