Electron Transfer Reactions of Photosystem I Involving the Secondary Acceptor A1

  • Pierre Sétif
  • Hervé Bottin
  • Klaus Brettel


The electron transport chain of photosystem I (PS I) comprises the primary donor P700 and five electron acceptors: the primary electron acceptor A0, which is a chlorophyll molecule, a secondary acceptor A1 and 3 iron-sulfur centers Fe-SA, Fe-SB and Fe-SX which act as tertiary electron acceptors. The knowledge of electron transfer pathways is far below in PS I compared to purple bacteria and PS II. Major controversial points are constituted by the electron transfer reactions concerning the secondary acceptor A1 and moreover by the chemical nature of this acceptor, although a lot of new data have accumulated in this field during the last few years.


Reaction Center Triplet State Electron Transfer Reaction Purple Bacterium Recombination Reaction 
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

  • Pierre Sétif
    • 1
  • Hervé Bottin
    • 1
  • Klaus Brettel
    • 2
  1. 1.Dépt. Biologie, Sce BiophysiqueC.E.N. SaclayGif sur Yvette CedexFrance
  2. 2.Max-Volmer-Institut für Biophysik. und Physik. ChemieT.U. BerlinBerlin 12Germany

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