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Analysis of the spin-polarized electron spin echo of the [P700+ A1-] radical pair of photosystem I indicates that both reaction center subunits are competent in electron transfer in cyanobacteria, green algae, and higher plants.

Abstract:

The decay of the light-induced spin-correlated radical pair [P700+ A1-] and the associated electron spin echo envelope modulation (ESEEM) have been studied in either thylakoid membranes, cellular membranes, or purified photosystem I prepared from the wild-type strains of Synechocystis sp. PCC 6803, Chlamydomonas reinhardtii, and Spinaceae oleracea. The decay of the spin-correlated radical pair is described in the wild-type membrane by two exponential components with lifetimes of 2-4 and 16-25...

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Publication status:
Published

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Publisher copy:
10.1021/bi060330h

Authors


Santabarbara, S More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Heathcote, P More by this author
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Journal:
Biochemistry
Volume:
45
Issue:
23
Pages:
7389-7403
Publication date:
2006-06-05
DOI:
EISSN:
1520-4995
ISSN:
0006-2960
URN:
uuid:71cf0825-a9c6-44fc-b7bb-bbcaeddfff3d
Source identifiers:
33495
Local pid:
pubs:33495

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