Site-directed mutations affecting the spectroscopic characteristics and midpoint potential of the primary donor in photosystem I.

@article{Webber1996SitedirectedMA,
  title={Site-directed mutations affecting the spectroscopic characteristics and midpoint potential of the primary donor in photosystem I.},
  author={A. Webber and H. Su and S. Bingham and H. K{\"a}ss and L. Krabben and M. Kuhn and R. Jordan and E. Schlodder and W. Lubitz},
  journal={Biochemistry},
  year={1996},
  volume={35 39},
  pages={
          12857-63
        }
}
Photosystem I is a member of the iron-sulfur center or type I reaction centers. The primary electron donor in photosystem I is a chlorophyll a dimer termed P700. The biophysical properties of P700 are well understood, but the protein environment that gives it such unique properties is unknown. We have characterized site-directed mutants of the photosystem I reaction center protein PsaB and identified an amino acid, His-656, that interacts closely with one of the P700 chlorophylls. Mutation of… Expand
Mutation of the putative hydrogen-bond donor to P700 of photosystem I.
P700: the primary electron donor of photosystem I.
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