Carboxylate shifts steer interquinone electron transfer in photosynthesis.

  title={Carboxylate shifts steer interquinone electron transfer in photosynthesis.},
  author={Petko Chernev and Ivelina Zaharieva and Holger Dau and Michael Haumann},
  journal={The Journal of biological chemistry},
  volume={286 7},
Understanding the mechanisms of electron transfer (ET) in photosynthetic reaction centers (RCs) may inspire novel catalysts for sunlight-driven fuel production. The electron exit pathway of type II RCs comprises two quinone molecules working in series and in between a non-heme iron atom with a carboxyl ligand (bicarbonate in photosystem II (PSII), glutamate in bacterial RCs). For decades, the functional role of the iron has remained enigmatic. We tracked the iron site using microsecond… CONTINUE READING


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