Dodecamer rotor ring defines H+/ATP ratio for ATP synthesis of prokaryotic V-ATPase from Thermus thermophilus.

@article{Toei2007DodecamerRR,
  title={Dodecamer rotor ring defines H+/ATP ratio for ATP synthesis of prokaryotic V-ATPase from Thermus thermophilus.},
  author={Masashi Toei and Christoph Gerle and Masahiro Nakano and Kazutoshi Tani and Nobuhiko Gyobu and Masatada Tamakoshi and Nobuhito Sone and Masasuke Yoshida and Yoshinori Fujiyoshi and Kaoru Mitsuoka and Ken Yokoyama},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2007},
  volume={104 51},
  pages={
          20256-61
        }
}
ATP synthesis by V-ATPase from the thermophilic bacterium Thermus thermophilus driven by the acid-base transition was investigated. The rate of ATP synthesis increased in parallel with the increase in proton motive force (PMF) >110 mV, which is composed of a difference in proton concentration (DeltapH) and the electrical potential differences (DeltaPsi) across membranes. The optimum rate of synthesis reached 85 s(-1), and the H(+)/ATP ratio of 4.0 +/- 0.1 was obtained. ATP was synthesized at a… CONTINUE READING
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