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RNA allostery glimpsed

Riboswitches provide an elegantly simple means of coupling metabolic sensing to genetic regulation. Recent work provides a wealth of structural insight into ligand binding by these RNAs.

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Figure 1: Genetic mechanisms of metabolite-sensing regulatory RNAs.
Figure 2: TPP- and SAM-sensing RNAs used in crystallography.
Figure 3: Common architecture for TPP switches.
Figure 4: Antiterminator sequestration in the TPP and SAM sensors.

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Winkler, W., Dann, C. RNA allostery glimpsed. Nat Struct Mol Biol 13, 569–571 (2006). https://doi.org/10.1038/nsmb0706-569

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