Mixed exciton-charge-transfer states in photosystem II: Stark spectroscopy on site-directed mutants.

@article{Romero2012MixedES,
  title={Mixed exciton-charge-transfer states in photosystem II: Stark spectroscopy on site-directed mutants.},
  author={E. Romero and Bruce A Diner and Peter J Nixon and Wiliam J Coleman and Jan P. Dekker and Rienk van Grondelle},
  journal={Biophysical journal},
  year={2012},
  volume={103 2},
  pages={185-94}
}
We investigated the electronic structure of the photosystem II reaction center (PSII RC) in relation to the light-induced charge separation process using Stark spectroscopy on a series of site-directed PSII RC mutants from the cyanobacterium Synechocystis sp. PCC 6803. The site-directed mutations modify the protein environment of the cofactors involved in charge separation (P(D1), P(D2), Chl(D1), and Phe(D1)). The results demonstrate that at least two different exciton states are mixed with… CONTINUE READING