Crystal structures of a series of RNA aptamers complexed to the same protein target.
Rowsell, S., Stonehouse, N.J., Convery, M.A., Adams, C.J., Ellington, A.D., Hirao, I., Peabody, D.S., Stockley, P.G., Phillips, S.E.(1998) Nat Struct Biol 5: 970-975
- PubMed: 9808042 
- DOI: 10.1038/2946
- Primary Citation of Related Structures:  
5MSF, 7MSF - PubMed Abstract: 
We have determined the crystal structures, at 2.8 A resolution, of two different RNA aptamers, each bound to MS2 coat protein. One of the aptamers contains a non-Watson-Crick base pair, while the other is missing one of the unpaired adenines that make sequence-specific contacts in the wild-type complex ...