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Abstract
CRISPR-Cas systems may enhance the competitive edge of certain bacterial strains against phage predation.
- Bacteria use CRISPR-Cas systems to resist phage attacks, which can lead to advantages in competition among bacterial strains.
- Phages produce a variety of anti-CRISPR (Acr) proteins that can neutralize the CRISPR-Cas system, restoring their infectivity.
- The presence of Acr proteins may limit the prevalence of CRISPR-equipped bacteria, affecting microbial diversity in various environments.
- Acrs can influence microbial community dynamics, which may indirectly alter ecosystem functions like nutrient cycling in marine and soil ecosystems.
- Acr proteins show potential for applications in controlled genome editing, serving as regulatory components in editing systems.
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