Hidden alternative structures of proline isomerase essential for catalysis.
Fraser, J.S., Clarkson, M.W., Degnan, S.C., Erion, R., Kern, D., Alber, T.(2009) Nature 462: 669-673
- PubMed: 19956261 
- DOI: 10.1038/nature08615
- Primary Citation of Related Structures:  
3K0M, 3K0N, 3K0O, 3K0P, 3K0Q, 3K0R - PubMed Abstract: 
A long-standing challenge is to understand at the atomic level how protein dynamics contribute to enzyme catalysis. X-ray crystallography can provide snapshots of conformational substates sampled during enzymatic reactions, while NMR relaxation methods reveal the rates of interconversion between substates and the corresponding relative populations ...