Operation of UQH2: CYT C2 Oxidoreductase of R. sphaeroides in the Steady State

  • Yue Chen
  • Antony Crofts

Abstract

Measurement of the thermodynamic poise of redox components of electron transfer chains under coupled conditions has been used extensively in the mitochondrial field to analyze through “cross-over points” the contributions to different spans to the work required to drive ATP synthesis, or maintain the proton gradient. In the work described in this paper, a steady state approach has been developed by which the redox poise of the electron transfer chain, the electron flux and H+-gradient could be simultaneously monitored, and the approach to the coupled steady-state (static head) could be followed kinetically on illumination of chromatophores from Rhodobacter sphaeroides.

Keywords

Electron Flux Proton Gradient Rhodobacter Sphaeroides Redox Center Electron Transfer Chain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Yue Chen
    • 1
  • Antony Crofts
    • 1
  1. 1.Dept. of Physiology and BiophysicsUniversity of IllinoisUrbanaUSA

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