Ecology and evolution of phages encoding anti-CRISPR proteins - Archive ouverte HAL
Article Dans Une Revue Journal of Molecular Biology Année : 2023

Ecology and evolution of phages encoding anti-CRISPR proteins

Benoît J Pons
  • Fonction : Auteur
Stineke van Houte
  • Fonction : Auteur
Edze R Westra

Résumé

CRISPR-Cas are prokaryotic defence systems that provide protection against invasion by mobile genetic elements (MGE), including bacteriophages. MGE can overcome CRISPR-Cas defences by encoding anti-CRISPR (Acr) proteins. These proteins are produced in the early stages of the infection and inhibit the CRISPR-Cas machinery to allow phage replication. While research on Acr has mainly focused on their discovery, structure and mode of action, and their applications in biotechnology, the impact of Acr on the ecology of MGE as well as on the coevolution with their bacterial hosts only begins to be unravelled. In this review, we summarise our current understanding on the distribution of anti-CRISPR genes in MGE, the ecology of phages encoding Acr, and their coevolution with bacterial defence mechanisms. We highlight the need to use more diverse and complex experimental models to better understand the impact of anti-CRISPR in MGE-host interactions.
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Dates et versions

hal-04269900 , version 1 (03-11-2023)

Identifiants

Citer

Benoît J Pons, Stineke van Houte, Edze R Westra, Anne Chevallereau. Ecology and evolution of phages encoding anti-CRISPR proteins. Journal of Molecular Biology, 2023, 435 (7), pp.167974. ⟨10.1016/j.jmb.2023.167974⟩. ⟨hal-04269900⟩

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