In the post-genomic era, many genes and regulatory elements remain uncharacterized, including riboswitches — RNA structures that control gene expression by directly binding metabolites. Here, a new type of metal-responsive riboswitch that senses sodium cations expands the bacterial Na+ metabolic repertoire.
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Waters, L. A new class of metal-sensing RNA. Nat Chem Biol 18, 798–799 (2022). https://doi.org/10.1038/s41589-022-01087-3
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DOI: https://doi.org/10.1038/s41589-022-01087-3