Energy transduction in the sodium F-ATPase of Propionigenium modestum
Open Access
- 27 April 1999
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 96 (9), 4924-4929
- https://doi.org/10.1073/pnas.96.9.4924
Abstract
The F-ATPase of the bacterium Propionigenium modestum is driven by an electrochemical sodium gradient between the cell interior and its environment. Here we present a mechanochemical model for the transduction of transmembrane sodium-motive force into rotary torque. The same mechanism is likely to operate in other F-ATPases, including the proton-driven F-ATPases of Escherichia coli.Keywords
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