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Energy level of P+B- with respect to P* found from recombination fluorescence measurements in pheophytin-modified reaction centresстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Shuvalov V.A., Yakovlev A.G.
- Журнал: Membrane & cell biology
- Том: 12
- Номер: 5
- Год издания: 1998
- Издательство: Harwood Academic Publishers
- Местоположение издательства: Switzerland
- Первая страница: 563
- Последняя страница: 569
- Аннотация: Recent studies of reaction centres from Rhodobacter sphaeroides (R-26), in which bacteriopheophytins a were replaced by plant pheophytins a, have shown that at low temperature the excited state of primary electron donor P* is converted to the state P+B-(A) (where B(A) is a bacteriochlorophyll a monomer in branch A) which has a long lifetime (about 600 ps [8]). This allows the direct measurement of the free energy difference between P* and P+B-(A) using the temperature dependence of the recombination fluorescence from P+B-(A). The data show that P+B-(A) is located below P* by 550+/-30 cm-1. Thus, the primary conversion of P* leads to the formation of P+B-(A) which is below P* in energy and is a real intermediate in electron transfer.
- Добавил в систему: Яковлев Андрей Георгиевич