Coupling of collective motions of the protein matrix to vibrations of the non-heme iron in bacterial photosynthetic reaction centers.

@article{Orzechowska2010CouplingOC,
  title={Coupling of collective motions of the protein matrix to vibrations of the non-heme iron in bacterial photosynthetic reaction centers.},
  author={Aleksandra Orzechowska and Magdalena Lipińska and Joanna Fiedor and Aleksandr I Chumakov and Z. Tarnawski and Tomasz Ślęzak and Krzysztof Matlak and Kazimierz Strzałka and J{\'o}zef Korecki and Leszek Fiedor and Květoslava Burda},
  journal={Biochimica et biophysica acta},
  year={2010},
  volume={1797 10},
  pages={
          1696-704
        }
}
Non-heme iron is a conservative component of type II photosynthetic reaction centers of unknown function. We found that in the reaction center from Rba. sphaeroides it exists in two forms, high and low spin ferrous states, whereas in Rsp. rubrum mostly in a low spin state, in line with our earlier finding of its low spin state in the algal photosystem II reaction center (Burda et al., 2003). The temperature dependence of the non-heme iron displacement studied by Mössbauer spectroscopy shows… CONTINUE READING
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