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.
Författare
G Katona
Chalmers
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 7 630-631Ämneskategorier
Biokemi och molekylärbiologi
DOI
10.1038/nsmb948
PubMed
15937492