Electron Transfer in Rhodopseudomonas Viridis Reaction Centers with Prereduced Bacteriopheophytin BL

  • V. A. Shuvalov
  • A. Ya. Shkuropatov
  • A. V. Klevanik
Part of the Nato ASI Series book series (NSSA, volume 237)


Bacterial reaction centers (RCs) contain three protein subunits (L, M and H), four bacteriochlorophylls (BChl), two bacteriopheophytins (H), two quinones (Q) and one atom of Fe [1]. Accordingly to spectral properties [2] and X-ray analysis [3] two BChls form a dimer, primary electron donor P. Two other BChls (B) and two H form two transmembrane cofactor chains located in L and M protein subunits and terminated by two Qs: P-BL-HL-QA and P-BM-HM-QB [3]. Only LA-chain is photochemically active. The excited state P* within 3–4 ps at 293K transfers an electron to (BLHL) acceptor complex [4–6]. An electron is further transfered to QA within 200 ps.


Recombination Photosynthesis Quinone Bacteriochlorophyll 


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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • V. A. Shuvalov
    • 1
  • A. Ya. Shkuropatov
    • 1
  • A. V. Klevanik
    • 1
  1. 1.Institute of Soil Science and PhotosynthesisRussian Academy of SciencesRussia

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