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. Author manuscript; available in PMC: 2013 Sep 24.
Published in final edited form as: Nat Chem Biol. 2011 Aug 14;7(10):748–755. doi: 10.1038/nchembio.631

Figure 6.

Figure 6

Summary of dG recognition. a, Superposition of the natural dG riboswitch structure (this study, pink) and the guanine riboswitch based guanine-dG riboswitch structure17 (green) shows similar global RNA folds. b, Involvement of riboswitch structural features in dG binding to the natural dG riboswitch. Pink and green nucleotides designate areas where the most critical differences from adenine/guanine riboswitches occur. Green nucleotides highlight similarities with the guanine-dG riboswitch structure17. Each element’s contribution to the specificity and affinity of dG binding is roughly estimated based on current and published data13,17.