ArticlePLoS biology2025
DnaJ mediates phage sensing by the bacterial NLR-related protein bNACHT25.
Article in PLoS biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Article
- A bacterial CARD-NLR-like immune system controls the release of gene transfer agents.Nature microbiology · 2026Article
- RNA-binding proteins: a comprehensive review of multifaceted regulatory mechanisms in neuroinflammation and implications in the pathogenesis of neurological disorders.Journal of neuroinflammation · 2026Review
- A phage protein screen identifies triggers of the bacterial innate immune system.Nature microbiology · 2026Article
- Diverse bacterial pattern recognition receptors sense the conserved phage proteome.bioRxiv : the preprint server for biology · 2026Article
- A novel lineage of large aquatic bacteriophages identified through metagenomics.Archives of virology · 2025Article
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6 authors.
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Abstract
Bacteria encode a wide range of antiphage systems and a subset of these proteins are homologous to components of the human innate immune system. Mammalian nucleotide-binding and leucine-rich repeat containing proteins (NLRs) and bacterial NLR-related proteins use a central NACHT domain to link detection of infection with initiation of an antimicrobial response. Bacterial NACHT proteins provide defense against both DNA and RNA phages. Here we investigate the mechanism of phage detection by the bacterial NLR-related protein bNACHT25 in E. coli. bNACHT25 was specifically activated by Emesvirus ssRNA phages and analysis of MS2 phage escaper mutants that evaded detection revealed a critical role for Coat Protein (CP). A genetic assay showed CP was sufficient to activate bNACHT25 but the two proteins did not directly interact. Instead, we found bNACHT25 requires the host chaperone DnaJ to detect CP and protect against phage. Our data support a model in which bNACHT25 detects a wide range of phages using an indirect mechanism that may involve guarding a host cell process rather than binding a specific phage-derived molecule.
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