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. Author manuscript; available in PMC: 2022 Sep 17.
Published in final edited form as: Nat Chem Biol. 2022 Mar 17;18(5):547–555. doi: 10.1038/s41589-022-00976-x

Extended Data Fig. 6. Comparison to binding sites of purine riboswitches also involving protonated nucleobases or metal ion binding.

Extended Data Fig. 6

(a, b) G20A mutant of Vc2 riboswitch with c-di-GMP (pdb 3mum), showing (a) Gß and (b) G(/ bound via stably protonated A20. (c) T. tengcongensis preQ1 riboswitch with bound preQ1 (pdb 3q50). (d) NMT1 riboswitch in complex with xanthine (pdb 7elr).