A dynamic knockout reveals that conformational fluctuations influence the chemical step of enzyme catalysis.
Bhabha, G., Lee, J., Ekiert, D.C., Gam, J., Wilson, I.A., Dyson, H.J., Benkovic, S.J., Wright, P.E.(2011) Science 332: 234-238
- PubMed: 21474759 
- DOI: 10.1126/science.1198542
- Primary Citation of Related Structures:  
3QL0, 3QL3 - PubMed Abstract: 
Conformational dynamics play a key role in enzyme catalysis. Although protein motions have clear implications for ligand flux, a role for dynamics in the chemical step of enzyme catalysis has not been clearly established. We generated a mutant of Escherichia coli dihydrofolate reductase that abrogates millisecond-time-scale fluctuations in the enzyme active site without perturbing its structural and electrostatic preorganization ...