Structure-based principles underlying ligand recognition of xanthine-II riboswitch.

Abstract excerpt

Riboswitches are conserved RNA elements that specifically recognize the cognate metabolites and regulate downstream gene expression involved in the metabolic pathways. To date, two classes of xanthine-responsive riboswitches involved in xanthine homeostasis have been identified. The recently reported xanthine-II riboswitch originates from guanine riboswitch family, featuring a single U-to-G mutation and several...

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