Free energy dependence of the direct charge recombination from the primary and secondary quinones in reaction centers from Rhodobacter sphaeroides

@article{Allen1998FreeED,
  title={Free energy dependence of the direct charge recombination from the primary and secondary quinones in reaction centers from Rhodobacter sphaeroides},
  author={Jonathan Paul Allen and Joann C. Williams and M. S. Graige and Mark L. Paddock and Andreas Labahn and George Feher and Melvin Y Okamura},
  journal={Photosynthesis Research},
  year={1998},
  volume={55},
  pages={227-233}
}
The direct charge recombination rates from the primary quinone, kAD (D+QA− → DQA) and the secondary quinone, kBD (D+QB− → DQB), in reaction centers from Rhodobacter sphaeroides were measured as a function of the free energy differences for the processes, ΔGAD0 and ΔGBD0, respectively. Measurements were performed at 21 °C on a series of mutant reaction centers that have a wide range of dimer midpoint potentials and consequently a large variation in ΔGAD0 and ΔGBD0. As –ΔGAD0 varied from 0.43 to… CONTINUE READING

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Proton and electron transfer in the acceptor quinone complex of photosynthetic reaction centers from Rhodobacter sphaeroides.

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  • 2004
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