Additivity in the Contribution to Herbicide Binding of Amino Acid Residues in the D1 Protein of Photosystem II

  • Yael Eisenberg
  • Nir Ohad
  • Amnon Horovitz
  • Joseph Hirschberg


Photosystem II herbicides inhibit electron transfer from QA to QB by binding to the D1 protein thus causing a displacement of the plastoquinone QB [1,2]. Competition between the herbicides and QB for the same binding site has been demonstrated [2,3]. Different amino acid substitutions in the D1 protein have been previously found to reduce herbicide binding thereby conferring herbicide-resistance [4,5].


Amino Acid Substitution Amino Acid Replacement Thermodynamic Cycle Alternative Binding Respective Inhibitor 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Yael Eisenberg
    • 1
  • Nir Ohad
    • 1
  • Amnon Horovitz
    • 1
  • Joseph Hirschberg
    • 1
  1. 1.Department of GeneticsThe Hebrew University of JerusalemJerusalemIsrael

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