Dramatic Improvement of Crystals of Large RNAs by Cation Replacement and Dehydration.
Zhang, J., Ferre-D'Amare, A.R.(2014) Structure 22: 1363-1371
- PubMed: 25185828 
- DOI: 10.1016/j.str.2014.07.011
- Primary Citation of Related Structures:  
4TZP, 4TZV, 4TZW, 4TZX, 4TZY, 4TZZ - PubMed Abstract: 
Compared to globular proteins, RNAs with complex 3D folds are characterized by poorly differentiated molecular surfaces dominated by backbone phosphates, sparse tertiary contacts stabilizing global architecture, and conformational flexibility. The resulting generally poor order of crystals of large RNAs and their complexes frequently hampers crystallographic structure determination ...