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Proton-Motive Force

Energy that is generated by the transfer of protons or electrons across an energy-transducing membrane and that can be used for chemical, osmotic, or mechanical work. Proton-motive force can be generated by a variety of phenomena including the operation of an electron transport chain, illumination of a PURPLE MEMBRANE, and the hydrolysis of ATP by a proton ATPase. (From Singleton and Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed, p171)

Year introduced: 1996

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Tree Number(s): G02.765, G03.295.770

MeSH Unique ID: D018892

Entry Terms:

  • Proton Motive Force
  • Proton-Motive Forces
  • Chemiosmotic Mechanisms
  • Chemiosmotic Mechanism
  • delta pH
  • pH, delta
  • pH gradient
  • gradient, pH
  • deltapH

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