Extended Data Fig. 3: Eight tiers comprise the Squash aptamer core.
From: The fluorescent aptamer Squash extensively repurposes the adenine riboswitch fold
Ball-and-stick representation of each tier (numbered 1-8 in bold numerals) in the Squash core. Panel with DFHBI-1T and G14 (tier 2) shows A69 and A70 from adjacent tiers for reference. Orange dashed lines denote hydrogen bonds. Secondary structure representation corresponds to that in Fig. 1e.
