Reaction center of photosystem II with no peripheral pigments in D2 allows secondary electron transfer in D1

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12640%2F07%3A00008307" target="_blank" >RIV/60076658:12640/07:00008307 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Reaction center of photosystem II with no peripheral pigments in D2 allows secondary electron transfer in D1
Original language description
A pigment-deficient reaction center of photosystem II (PSII)-with all the core pigments (two molecules of chlorophyll a and one of pheophytin a in each D protein) but with only one molecule each of peripheral chlorophyll alpha (Chlz) and beta-carotene (Car)-has been investigated by pump-probe spectroscopy. The data imply that Car and Chlz are both bound to D1. The absence of Car and Chlz in D2 allows the unprecedented observation of secondary electron transfer in D1 of PSII reaction centers at room temperature. The absorption band of the Car cation in D1 (Car(D1)(+center dot)) peaks around 910 nm (as against 990 nm for Car(D2)(+center dot) ), D DD, and its positive hole is shared by ChlZ(D1), whereas Car(D2)(+center dot) can disappear by capturing an electron from ChlZ(D2).
Czech name
Reakční centrum fotosystému II bez vnějšího pigmentu na D2 se sekundárním elektronovým pransportem v D1
Czech description
Pozorovali jsme sekundární přenos elektronů v aktivní větvi reakčního centra fotosystému II izolovaného z hrachu.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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