Advertisement

Pressure Effects on Electron Transfer in Bacterial Reaction Centers

  • Maurice W. Windsor
Chapter
Part of the NATO ASI Series book series (NSSA, volume 149)

Abstract

Studies of the effects of pressure on the various electron transfer reactions, both forward and backward, that mediate charge separation and recombination in bacterial reaction centers, can provide useful information on changes in conformation and distances involving the various chromophores and their protein scaffolding that may accompany these movements of charge. We have recently reported the effects of pressure on the rates of one forward reaction and three back reactions for two species of photosynthetic bacteria, Rb. sphaeroides and Rps. viridis (1). In this brief report I review these results and compare them with earlier studies of the temperature dependence of these processes (2,3). A simple model is proposed that appears to account for both pressure and temperature data and which can be tested by additional experiments.

Keywords

Reaction Center Electron Transfer Reaction Photosynthetic Bacterium Charge Recombination Protein Scaffolding 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    C. W. Hoganson, M. W. Windsor, D. I. Farkas, and W. W. Parson, Biochim. Biophys. Acta 892: 275 (1987).CrossRefGoogle Scholar
  2. 2.
    C. C. Schenck, W. W. Parson, D. Holten, M. W. Windsor, A. Sarai, Biophys. J. 36: 479 (1981).PubMedCrossRefGoogle Scholar
  3. 3.
    C. Kirmaier, D. Holten, W. W. Parson, Biochim. Biophys. Acta, 810:33 (1985).CrossRefGoogle Scholar
  4. 4.
    D. Kleinfeld, M. Y. Okamura, and G. Feher, Biochemistry, 23:5780 (1984).PubMedCrossRefGoogle Scholar
  5. 5.
    R. Menzel and M. W. Windsor, unpublished results.Google Scholar
  6. 6.
    A. Ogrodnik, W. Lersch, M. E. Michel-Beyerle, J. Deisenhofer, and H. Michel, in Antennas and Reaction Centers of Photosynthetic Bacteria, ed. M. E. Michel-Beyerle, Springer Series in Chemical Physics 42, Springer-Verlag, 1985, p. 198.Google Scholar
  7. 7.
    M. Y. Okamura, R. A. Isaacson, and G. Feher, Proc. Natl. Acad. Sci. USA 72:3492 (1975).CrossRefGoogle Scholar
  8. 8.
    N. W. Woodbury, W. W. Parson, M. R. Gunner, R. C. Prince, and P. L. Dutton, Biochim. Biophys. Acta, 851:6 (1986).PubMedCrossRefGoogle Scholar
  9. 9.
    C. Kirmaier, D. Holten, R. Debus, M. Y. Okamura, and G. Feher, Proc. Natl. Acad. Sci. USA, 83:6407 (1986).PubMedCrossRefGoogle Scholar
  10. 10.
    M. W. Windsor, J. Chem. Soc., Faraday Trans. II, 82:2237 (1986).Google Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • Maurice W. Windsor
    • 1
  1. 1.Department of ChemistryWashington State UniversityPullmanUSA

Personalised recommendations