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Na(+) As Coupling Ion in Energy Transduction in Extremophilic Bacteria and Archaea

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Publisher Springer
Date 2014 Jan 14
PMID 24414411
Citations 3
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Abstract

For microorganisms to live under extreme physical conditions requires important adaptations of the cells. In many organisms the use of Na(+) instead of protons as coupling ion in energy transduction is associated with such adaptation. This review focuses on the enzymes that are responsible for the generation and utilization of Na(+) gradients in extremophilic microorganisms. Aspects that are dealt with include: bioenergetics and ion homeostasis in extremophilic Bacteria and Archaea; the molecular mechanism of Na(+) translocation; and (dis)advantages of Na(+) as coupling ion in energy transduction.

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