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Annual Review of Virology

Volume 11, 2024

Diverse Antiphage Defenses Are Widespread Among Prophages and Mobile Genetic Elements

Abstract

Bacterial viruses known as phages rely on their hosts for replication and thus have developed an intimate partnership over evolutionary time. The survival of temperate phages, which can establish a chronic infection in which their genomes are maintained in a quiescent state known as a prophage, is tightly coupled with the survival of their bacterial hosts. As a result, prophages encode a diverse antiphage defense arsenal to protect themselves and the bacterial host in which they reside from further phage infection. Similarly, the survival and success of prophage-related elements such as phage-inducible chromosomal islands are directly tied to the survival and success of their bacterial host, and they also have been shown to encode numerous antiphage defenses. Here, we describe the current knowledge of antiphage defenses encoded by prophages and prophage-related mobile genetic elements.

Keyword(s): antiphage defense, bacteriophages, immunity, lysogeny, mobile genetic elements, prophages
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2024-09-26
2024-10-12
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/content/journals/10.1146/annurev-virology-100422-125123
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Diverse Antiphage Defenses Are Widespread Among Prophages and Mobile Genetic Elements
Annual Review of Virology 11, 343 (2024); https://doi.org/10.1146/annurev-virology-100422-125123
/content/journals/10.1146/annurev-virology-100422-125123
/content/journals/10.1146/annurev-virology-100422-125123
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