Photosystem I in Barley: Subunit PSI-F is Not Essential for the Interaction with Plastocyanin

  • Henrik Vibe Scheller
  • Birgitte Andersen
  • Sigurd Okkels
  • Ib Svendsen
  • Birger Lindberg Møller


Photosystem I (PS I) preparations from barley contain polypeptides with apparent molecular masses of 82 (PSI-A and PSI-B), 18 (PSI-D), 16 (PSI-E), 14, 9.5 (PSI-H), 9 (PSI-C), 4, and 1.5 kDa (PSI-I) (1, 2). The nomenclature used for the polypeptides was proposed by Schantz and Bogorad (3) and is described in detail by Møller et al. (4). One copy of PSI-A, PSI-B, PSI-C, PSI-D, PSI-E, and PSI-H is present per P700 reaction center (1). The stoichiometry of the remaining subunits has not been determined.


Apparent Molecular Mass Fast Inactivation Thylakoid Lumen Detergent Treatment Stromal Side 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Henrik Vibe Scheller
    • 1
  • Birgitte Andersen
    • 1
  • Sigurd Okkels
    • 1
  • Ib Svendsen
    • 2
  • Birger Lindberg Møller
    • 1
  1. 1.Department of Plant PhysiologyRoyal Veterinary and Agricultural UniversityFrederiksberg CDenmark
  2. 2.Department of ChemistryCarlsberg LaboratoryValbyDenmark

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