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Media type:
E-Article
Title:
The First Picoseconds in Bacterial Photosynthesis—Ultrafast Electron Transfer for the Efficient Conversion of Light Energy
Contributor:
Zinth, Wolfgang;
Wachtveitl, Josef
imprint:
Wiley, 2005
Published in:ChemPhysChem
Language:
English
DOI:
10.1002/cphc.200400458
ISSN:
1439-4235;
1439-7641
Origination:
Footnote:
Description:
<jats:title>Abstract</jats:title><jats:p><jats:italic>In this Minireview, we describe the function of the bacterial reaction centre (RC) as the central photosynthetic energy‐conversion unit by ultrafast spectroscopy combined with structural analysis, site‐directed mutagenesis, pigment exchange and theoretical modelling. We show that primary energy conversion is a stepwise process in which an electron is transferred via neighbouring chromophores of the RC. A well‐defined chromophore arrangement in a rigid protein matrix, combined with optimised energetics of the different electron carriers, allows a highly efficient charge‐separation process. The individual molecular reactions at room temperature are well described by conventional electron‐transfer theory.</jats:italic></jats:p>