Conformational regulation of charge recombination reactions in a photosynthetic bacterial reaction center
Research output: Contribution to journal › Journal article › Research › peer-review
In bright light the photosynthetic reaction center (RC) of Rhodobacter sphaeroides stabilizes the P(+)(870).Q(-)(A) charge-separated state and thereby minimizes the potentially harmful effects of light saturation. Using X-ray diffraction we report a conformational change that occurs within the cytoplasmic domain of this RC in response to prolonged illumination with bright light. Our observations suggest a novel structural mechanism for the regulation of electron transfer reactions in photosynthesis.
|Journal||Nature Structural and Molecular Biology|
|Number of pages||2|
|Publication status||Published - Jul 2005|
- Crystallography, Electron Transport, Light, Models, Molecular, Photochemistry, Photosynthetic Reaction Center Complex Proteins, Protein Conformation, Rhodobacter sphaeroides, X-Ray Diffraction