Encapsulating Streptomycin within a small 40-mer RNA
Tereshko, V., Skripkin, E., Patel, D.J.(2003) Chem Biol 10: 175-187
- PubMed: 12618190 
- DOI: 10.1016/s1074-5521(03)00024-3
- Primary Citation of Related Structures:  
1NTA, 1NTB - PubMed Abstract: 
We describe a 2.9 A X-ray structure of a complex between the aminocyclitol antibiotic streptomycin and an in vitro selected RNA aptamer, solved using the anomalous diffraction properties of Ba cations. The RNA aptamer, which contains two asymmetric internal loops, adopts a distinct cation-stabilized fold involving a series of S-shaped backbone turns anchored by canonical and noncanonical pairs and triples ...