Methanogenic archaea live at the thermodynamic limit of life and use sophisticated mechanisms for ATP synthesis and energy coupling. The group of methanogens without cytochromes use an Na+ current across the membrane for ATP synthesis, whereas the cytochrome-containing methanogens have additional coupling sites that also translocate protons. The ATP synthase in this group is promiscuous and uses Na+ and H+ simultaneously.
Conference Article| January 29 2013
Evolution of Na+ and H+ bioenergetics in methanogenic archaea
Volker Müller 1
1Department of Molecular Microbiology and Bioenergetics, Institute of Molecular Biosciences, Johann Wolfgang Goethe University Frankfurt am Main, Max-von-Laue-Strasse 9, 60438 Frankfurt, Germany
1To whom correspondence should be addressed (email@example.com).
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Katharina Schlegel, Volker Müller; Evolution of Na+ and H+ bioenergetics in methanogenic archaea. Biochem Soc Trans 1 February 2013; 41 (1): 421–426. doi: https://doi.org/10.1042/BST20120294
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