Investigation of RNA–Ligand Interactions by 19F NMR Spectroscopy Using Fluorinated Probes

Spy swap: The interaction between an unlabeled RNA and unlabeled ligands (red hexagon) can be monitored by 19F NMR spectroscopy using small fluorinated diamines (green star) as spy reporters (see scheme). This technique also enables the visualization of the conformational capture of a riboswitch by its ligand. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.