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© Research
Publication : Nature communications

Systematic and quantitative view of the antiviral arsenal of prokaryotes.

Team: Molecular diversity of microbes
Member: Aude Bernheim
Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Nature communications - 10 May 2022

Tesson F, Hervé A, Mordret E, Touchon M, d'Humières C, Cury J, Bernheim A

Link to Pubmed [PMID] – 35538097

Link to DOI – 10.1038/s41467-022-30269-9

Nat Commun 2022 May; 13(1): 2561

Bacteria and archaea have developed multiple antiviral mechanisms, and genomic evidence indicates that several of these antiviral systems co-occur in the same strain. Here, we introduce DefenseFinder, a tool that automatically detects known antiviral systems in prokaryotic genomes. We use DefenseFinder to analyse 21000 fully sequenced prokaryotic genomes, and find that antiviral strategies vary drastically between phyla, species and strains. Variations in composition of antiviral systems correlate with genome size, viral threat, and lifestyle traits. DefenseFinder will facilitate large-scale genomic analysis of antiviral defense systems and the study of host-virus interactions in prokaryotes.