Interlocking structural motifs mediate molecular discrimination by a theophylline-binding RNA.
Zimmermann, G.R., Jenison, R.D., Wick, C.L., Simorre, J.P., Pardi, A.(1997) Nat Struct Biol 4: 644-649
- PubMed: 9253414 
- DOI: 10.1038/nsb0897-644
- Primary Citation of Related Structures:  
1EHT - PubMed Abstract: 
To visualize the interplay of RNA structural interactions in a ligand binding site, we have determined the solution structure of a high affinity RNA-theophylline complex using NMR spectroscopy. The structure provides insight into the ability of this in vitro selected RNA to discriminate theophylline from the structurally similar molecule caffeine ...