A systematic survey of conserved histidines in the core subunits of Photosystem I by site-directed mutagenesis reveals the likely axial ligands of P700.

@article{Redding1998ASS,
  title={A systematic survey of conserved histidines in the core subunits of Photosystem I by site-directed mutagenesis reveals the likely axial ligands of P700.},
  author={Kevin E Redding and Fraser Macmillan and Winfried Leibl and Klaus Brettel and Jennifer Hanley and A William Rutherford and Jacques Breton and J. D. Rochaix},
  journal={The EMBO journal},
  year={1998},
  volume={17 1},
  pages={50-60}
}
The Photosystem I complex catalyses the transfer of an electron from lumenal plastocyanin to stromal ferredoxin, using the energy of an absorbed photon. The initial photochemical event is the transfer of an electron from the excited state of P700, a pair of chlorophylls, to a monomer chlorophyll serving as the primary electron acceptor. We have performed a systematic survey of conserved histidines in the last six transmembrane segments of the related polytopic membrane proteins PsaA and PsaB in… CONTINUE READING