Time-resolved infrared detection of the proton and protein dynamics during photosynthetic oxygen evolution.

@article{Noguchi2012TimeresolvedID,
  title={Time-resolved infrared detection of the proton and protein dynamics during photosynthetic oxygen evolution.},
  author={Takumi Noguchi and Hiroyuki Suzuki and Masaya Tsuno and Miwa Sugiura and Chihiro Kato},
  journal={Biochemistry},
  year={2012},
  volume={51 15},
  pages={3205-14}
}
Photosynthetic oxygen evolution by plants and cyanobacteria is performed by water oxidation at the Mn(4)CaO(5) cluster in photosystem II. The reaction is known to proceed via a light-driven cycle of five intermediates called S(i) states (i = 0-4). However, the detailed reaction processes during the intermediate transitions remain unresolved. In this study, we have directly detected the proton and protein dynamics during the oxygen-evolving reactions using time-resolved infrared spectroscopy… CONTINUE READING

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Detection of an intermediary, protonated water cluster in photosynthetic oxygen evolution.

Proceedings of the National Academy of Sciences of the United States of America • 2013

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