ArticleFEBS letters2025
Suppression of amber stop codons impairs pathogenicity in Salmonella.
Article in FEBS letters, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
- Zeta CrAss-like Phages, a Separate Phage Family Using a Variety of Adaptive Mechanisms to Persist in Their Hosts.International journal of molecular sciences · 2025Review
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Authors and funding
4 authors.
Funding
Abstract
Translation terminates at UAG (amber), UGA (opal), and UAA (ochre) stop codons. In nature, readthrough of stop codons can be substantially enhanced by suppressor tRNAs. Stop-codon suppression also provides powerful tools in synthetic biology and disease treatment. How stop-codon suppression affects bacterial pathogenesis is poorly understood. Here, we show that suppression of UAG codons, but not UGA or UAA codons, attenuates expression of Salmonella Pathogenicity Island 1 (SPI-1) genes, which are required for virulence. Consistently, amber suppression abolishes Salmonella infection of macrophages. Systematic genetic and biochemical analyses further show that amber suppression decreases the activity, but not the level, of the master SPI-1 regulator HilD. Our work thus demonstrates an unexpected selectivity of stop codons in regulating Salmonella virulence.
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