A cluster of carboxylic groups in PsbO protein is involved in proton transfer from the water oxidizing complex of Photosystem II.

@article{Shutova2007ACO,
  title={A cluster of carboxylic groups in PsbO protein is involved in proton transfer from the water oxidizing complex of Photosystem II.},
  author={Tatiana Shutova and Vyacheslav V. Klimov and Bertil Andersson and G{\"o}ran Samuelsson},
  journal={Biochimica et biophysica acta},
  year={2007},
  volume={1767 6},
  pages={434-40}
}
The hypothesis presented here for proton transfer away from the water oxidation complex of Photosystem II (PSII) is supported by biochemical experiments on the isolated PsbO protein in solution, theoretical analyses of better understood proton transfer systems like bacteriorhodopsin and cytochrome oxidase, and the recently published 3D structure of PS II (Pdb entry 1S5L). We propose that a cluster of conserved glutamic and aspartic acid residues in the PsbO protein acts as a buffering network… CONTINUE READING