Article
Temperature dependence of single molecule rotation of the Escherichia coli ATP synthase F1 sector reveals the importance of gamma-beta subunit interactions in the catalytic dwell.
The Journal of biological chemistry - 14 Aug 2009
Sekiya Mizuki, Nakamoto Robert K, Al-Shawi Marwan K, Nakanishi-Matsui Mayumi, Futai Masamitsu
Abstract excerpt
The temperature-dependent rotation of F1-ATPase gamma subunit was observed in V(max) conditions at low viscous drag using a 60-nm gold bead (Nakanishi-Matsui, M., Kashiwagi, S., Hosokawa, H., Cipriano, D. J., Dunn, S. D., Wada, Y., and Futai, M. (2006) J. Biol. Chem. 281, 4126-4131). The Arrhenius slopes of the speed of the individual 120 degrees steps and reciprocal of the pause length between rotation steps...
Topics
- Adenosine Triphosphate
- Catalysis
- Escherichia coli
- Hydrolysis
- Kinetics
- Lysine
- Models, Molecular
- Molecular Conformation
- Mutation
- Protein Conformation