Advertisement

Quinone Binding and Herbicide Activity in the Acceptor Quinone Complex of Bacterial Reaction Centres

  • Colin A. Wraight
  • Robert J. Shopes
Part of the NATO ASI Series book series (NSSA, volume 168)

Abstract

The electron acceptor function of bacterial reaction centres is carried out by two quinones, QAand QB, which function in series to provide a unique, two-electron gate that releases reducing equivalents only in pairs. In a series of flashes, the quinones undergo reduction and oxidation as follows [1]:
$$ \begin{array}{l} Odd{\kern 1pt} flashes:\quad {Q_{A}}{Q_{B}}{Q_{A}}\overline {} {Q_{B}}{Q_{A}}{Q_{B}}\overline {} \left( {{H^{ + }}} \right)\;\left( {stable} \right) \\ Even\;flashes:\quad {Q_{A}}{Q_{B}}\overline {} \left( {{H^{ + }}} \right){Q_{A}}\overline {} {Q_{B}}\overline {} \left( {{H^{ + }}} \right){Q_{A}}{Q_{B}}{H_{2}}{Q_{A}}{Q_{B}} \\ \end{array} $$
(The photooxidized donor, P+, is rereduced after each flash, by a secondary donor — a c-type cytochrome, in vivo— and is omitted). A very similar electron acceptor activity is observed in PS II of plants and algae.

Keywords

Tertiary Butyl Herbicide Activity Midpoint Potential Bacterial Reaction Centre Secondary Quinone 
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.
    Crofts AR and Wraight CA (1983) Biochim Biophys Acta 726: 149–185Google Scholar
  2. 2.
    Gunner MR, Robertson DE and Dutton PL (1986) J. Phys Chem 90: 3783–3795CrossRefGoogle Scholar
  3. 3.
    McComb JC (1987) PhD Thesis, University of Illinois, Urbana ILGoogle Scholar
  4. 4.
    Wraight CA (1982) in Function of Quinones in Energy Conserving Systems (Trumpower BL, ed) pp 181–197, Academic PressGoogle Scholar
  5. 5.
    Rutherford AW, Heathcote P and Evans MCW (1979) Biochem J 182: 515–523PubMedGoogle Scholar
  6. 6.
    Rutherford AW and Evans MCW (1980) FEBS Lett 110: 257–261PubMedCrossRefGoogle Scholar
  7. 7.
    Prince RC, Dutton PL and Bruce JM (1983) FEBS Lett 160: 273–276CrossRefGoogle Scholar
  8. 8.
    Stein RR (1985) PhD Thesis, University of Illinois, Urbana ILGoogle Scholar
  9. 9.
    Gunner MR and Dutton PL (1986) Biochim Biophys Acta. In pressGoogle Scholar
  10. 10.
    Deisenhofer J, Epp O, Miki K, Huner R and Michel H (1985) Nature 318: 681–624CrossRefGoogle Scholar
  11. 11.
    Michel H, Epp O and Deisenhofer J (1986) EMBO J 5:2445–2451PubMedGoogle Scholar
  12. 12.
    Wraight CA (1979) Biochim Biophys Acta 548: 309–327PubMedCrossRefGoogle Scholar
  13. 13.
    Maroti P and Wraight CA (1988) Biochim Biophys Acta 934: 314–328CrossRefGoogle Scholar
  14. 14.
    Maroti P and Wraight CA (1988) Biochim Biophys Acta 934: 329–347CrossRefGoogle Scholar
  15. 15.
    McPherson PA, Okamura MY and Feher G (1988) Biochim Biophys Acta 934: 348–368CrossRefGoogle Scholar
  16. 16.
    Pfister K and Arntzen CJ (1979) Z Naturforsch 34c: 996–1009Google Scholar
  17. 17.
    Wraight CA (1981) Israel J Chem 24: 348–354Google Scholar
  18. 18.
    Stein RR, Castellvi AL, Bogacz JP and Wraight CA (1984) J Cell Biochem 24: 243–259PubMedCrossRefGoogle Scholar
  19. 19.
    Shopes RJ and Wraight CA (1987) in Progress in Photosynthesis Research (Biggins J, ed) Vol 2, pp 397–400, Martinus Nijhoff, DordrechtCrossRefGoogle Scholar
  20. 20.
    Wraight CA and Stein RR (1983) in Oxygen Evolution System of Plant Photosynthesis (Inoue Y, et al, eds) pp 383–392, Academic PressGoogle Scholar
  21. 21.
    Shopes RJ and Wraight CA (1987) Biochim Biophys Acta 893: 409–425PubMedCrossRefGoogle Scholar
  22. 22.
    Paddock ML, Rongey SH, Abresch EC, Feher G and Okamura MY (1988) Photosynth Res 17: 75–96CrossRefGoogle Scholar
  23. 23.
    Sinning I and Michel H (1987) Z Naturforsch 42c: 751–754Google Scholar
  24. 24.
    Bylina EJ and Youvan DC (1988) Gene. In press.Google Scholar
  25. 25.
    Williams JC, Steiner LA and Feher G (1986) Proteins 1: 312–325PubMedCrossRefGoogle Scholar
  26. 26.
    Prince RC, Halbert TR and Upton TH (1988) in Advances in Membrane Biochemistry and Bioenergetics (Kim CH, Tedeschi H, Diwan JJ and Salerno JC, eds) pp 469–478, Plenum PressGoogle Scholar

Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Colin A. Wraight
    • 1
  • Robert J. Shopes
    • 1
  1. 1.Department of Physiology and BiophysicsUniversity of IllinoisUrbanaUSA

Personalised recommendations