PRIMARY ELECTRON-TRANSFER KINETICS IN BACTERIAL REACTION CENTERS WITH MODIFIED BACTERIOCHLOROPHYLLS AT THE MONOMERIC SITES BA,B

被引：24
作者：
FINKELE, U
LAUTERWASSER, C
STRUCK, A
SCHEER, H
ZINTH, W
机构：
[1] UNIV MUNICH,INST MED OPT,W-8000 MUNICH 2,GERMANY
[2] UNIV MUNICH,INST BOT,W-8000 MUNICH 2,GERMANY
[3] TECH UNIV MUNICH,DEPT PHYS,W-8000 MUNICH 2,GERMANY
来源：
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1992年 / 89卷 / 20期
关键词：
PHOTOSYNTHESIS; FEMTOSECOND SPECTROSCOPY; RHODOBACTER-SPHAEROIDES;
D O I：
10.1073/pnas.89.20.9514
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The primary electron transfer has been investigated by femtosecond time-resolved absorption spectroscopy in two chemically modified reaction centers (RC) of Rhodobacter sphaeroides, in which the monomeric bacteriochlorophylls B(A) and B(B) have both been exchanged by 13(2)-hydroxybacteriochlorophyll a or [3-vinyl]-13(2)-hydroxybacteriochlorophyll a. The kinetics of the primary electron transfer are not influenced by the 13(2)-hydroxy modification. In RCs containing [3-vinyl]-13(2)-hydroxybacteriochlorophyll a the primary rate is reduced by a factor of 10.
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收藏
页码：9514 / 9518
页数：5
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