Echinenone vibrational properties: From solvents to the orange carotenoid protein.

@article{Kish2015EchinenoneVP,
  title={Echinenone vibrational properties: From solvents to the orange carotenoid protein.},
  author={Elizabeth Annette Kish and Maria Pinto and Diana Kirilovsky and Riccardo Spezia and Bruno G{\'e}rard Michel Robert},
  journal={Biochimica et biophysica acta},
  year={2015},
  volume={1847 10},
  pages={
          1044-54
        }
}
Orange carotenoid protein (OCP) is a cyanobacterial photoactive protein which binds echinenone as a chromophore; it is involved in photoprotection of these photosynthetic organisms against intense illumination. In its resting state, OCP appears orange (OCPo), and turns into a red form (OCPr) when exposed to blue-green light. Here we have combined resonance Raman spectroscopy and molecular modeling to investigate the mechanisms underlying the electronic absorption properties of the different… CONTINUE READING