The crystal structure of an all-RNA hammerhead ribozyme: a proposed mechanism for RNA catalytic cleavage.
Scott, W.G., Finch, J.T., Klug, A.(1995) Cell 81: 991-1002
- PubMed: 7541315 
- DOI: 10.1016/s0092-8674(05)80004-2
- Primary Citation of Related Structures:  
1MME - PubMed Abstract: 
We have solved the crystal structure of an all-RNA hammerhead ribozyme having a single 2'-O-methyl cytosine incorporated at the active site to prevent cleavage. The conditions used differ from those in another recent solution in four significant ways: first, it is an all-RNA ribozyme rather than a DNA-RNA hybrid; second, the connectivity of the ribozyme backbone strands is different; third, the crystals were grown in the presence of a much lower concentration of salt; and fourth, the crystal packing scheme is very different ...