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Microbiology

The case of the mysterious messenger

Bacteria and archaea use an innate immune system called CRISPR–Cas to combat viral infection. The identification of a family of molecules that play a key part in this system deepens our understanding of such immunity. See Article p.543

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Figure 1: Signalling in type III CRISPR–Cas systems.

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Correspondence to Scott Bailey.

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Johnson, K., Bailey, S. The case of the mysterious messenger. Nature 548, 527–528 (2017). https://doi.org/10.1038/nature23532

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