The H+/ATP Coupling Ratio at the H+-ATP-Synthase of Spinach Chloroplasts is Four

  • Bernd Rumberg
  • Karsten Schubert
  • Frank Strelow
  • Tuan Tran-Anh


The importance of the H+/ATP ratio, i.e. the number of H+ which have to be translocated across the ATP-synthase for each ATP molecule being synthesized or hydrolysed, has its origin in the treefold aspect of
  1. (1)

    mechanistic consequences with respect to the coupling process,

  2. (2)

    energetic consequences with respect to the attainable excess of ATP above ADP,

  3. (3)

    stoichiometric consequences with respect to the overall process of CO2 reduction.



Fluorescence Quenching Flux Measurement Spinach Chloroplast Energetic Consequence Linear Electron Transport 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Bernd Rumberg
    • 1
  • Karsten Schubert
    • 1
  • Frank Strelow
    • 1
  • Tuan Tran-Anh
    • 1
  1. 1.Max-Volmer-InstitutTechnische Universität BerlinBerlin 12Germany

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