Electrostatic influence of PsaC protein binding to the PsaA/PsaB heterodimer in photosystem I.

@article{Ishikita2006ElectrostaticIO,
  title={Electrostatic influence of PsaC protein binding to the PsaA/PsaB heterodimer in photosystem I.},
  author={Hiroshi Ishikita and Dietmar Stehlik and John H Golbeck and Ernst-Walter Knapp},
  journal={Biophysical journal},
  year={2006},
  volume={90 3},
  pages={1081-9}
}
The absence of the PsaC subunit in the photosystem I (PSI) complex (native PSI complex) by mutagenesis or chemical manipulation yields a PSI core (P700-F(X) core) that also lacks subunits PsaD and PsaE and the two iron-sulfur clusters F(A) and F(B), which constitute an integral part of PsaC. In this P700-F(X) core, the redox potentials (E(m)) of the two quinones A(1A/B) and the iron-sulfur cluster F(X) as well as the corresponding protonation patterns are investigated by evaluating the… CONTINUE READING

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