Conformational regulation of charge recombination reactions in a photosynthetic bacterial reaction center
Artikel i vetenskaplig tidskrift, 2005

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.


G Katona

Chalmers University of Technology

Arjan Snijder

Chalmers, Kemi- och bioteknik, Molekylär bioteknik

Pontus Emanuel Gourdon

Chalmers, Kemi- och bioteknik, Molekylär bioteknik

U Andreasson

Göteborgs universitet

Örjan Hansson

Göteborgs universitet

Lars-Erik Andreasson

Göteborgs universitet

Richard Neutze

Göteborgs universitet

Chalmers, Kemi- och bioteknik, Molekylär bioteknik

Nature Structural and Molecular Biology

1545-9993 (ISSN) 1545-9985 (eISSN)

Vol. 12 630-631


Biokemi och molekylärbiologi