Study of Electron Transfer Process of Heterodimer Reaction Center

YANG Zhi-yong; WANG Ya-feng; ZHANG Han-zhuang; WANG Hai-yu

doi:10.3788/fgxb20123311.1177

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Study of Electron Transfer Process of Heterodimer Reaction Center

更新时间：2020-08-12

- Study of Electron Transfer Process of Heterodimer Reaction Center
- Chinese Journal of Luminescence Vol. 33, Issue 11, Pages: 1177-1180(2012)
- 作者机构：
  
  1. 吉林大学物理学院,吉林长春,130021
  2. 吉林大学电子科学与工程学院,吉林长春,130012
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123311.1177
  CLC： O631.3
- Received：18 July 2012，
  
  Revised：20 August 2012，
  
  Published：10 November 2012
- 稿件说明：
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杨智勇, 王亚峰, 张汉壮, 王海宇. 异质二聚体反应中心的电荷转移过程[J]. 发光学报, 2012,(11): 1177-1180

YANG Zhi-yong, WANG Ya-feng, ZHANG Han-zhuang, WANG Hai-yu. Study of Electron Transfer Process of Heterodimer Reaction Center[J]. Chinese Journal of Luminescence, 2012,(11): 1177-1180
杨智勇, 王亚峰, 张汉壮, 王海宇. 异质二聚体反应中心的电荷转移过程[J]. 发光学报, 2012,(11): 1177-1180 DOI： 10.3788/fgxb20123311.1177.

YANG Zhi-yong, WANG Ya-feng, ZHANG Han-zhuang, WANG Hai-yu. Study of Electron Transfer Process of Heterodimer Reaction Center[J]. Chinese Journal of Luminescence, 2012,(11): 1177-1180 DOI： 10.3788/fgxb20123311.1177.

摘要

在低温的状态下

类球红细菌内天然叶绿素的反应中心发生的电荷分离对激发波长有较弱的依赖性

而这种依赖可能来源于分子内电荷转移态。我们采用表现出更多的电荷转移态性质的突变叶绿素为反应中心

对这种电荷分离过程中的激发波长依赖和温度依赖的性质做了进一步的研究。研究发现:突变的异质二聚体存在的两种激发态(定域的激发态与分子内电荷转移态)是相互强耦合的

在突变的分子异质二聚体中形成的电荷转移态并不是电荷分离的有效途径。随着温度的降低

异质二聚体的活性降低

从而电荷分离产率下降。

Abstract

At low temperature

primary charge separation in reaction centers of wild type rhodobacter sphaeroides show weak excitation wavelength dependence. It comes from the existence of the intramolecular charge transfer state. Herein

we find such kind of heterodimer mutant has more intramolecular charge transfer character and its excitation wavelength depend on temperature. The results show the excited state of heterodimer has two states (local and charge transfer) and they are strong coupling; Intramolecular charge transfer state is not favor to charge separation

as temperature decrease it becomes dark and charge separation yield decrease.

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Keywords

references

McDowel L M, Gaul D, Kirmaier C, et al. Investigation into the source of electron transfer asymmetry in bacterial reaction centers [J]. Biochemistry, 1991, 30(24):8315-8322.

Jordanides X J, Scholes G D, Fleming G R. The mechanism of energy transfer in the bacterial photosynthetic reaction center [J]. J. Phys. Chem. B, 2001, 105(8):1652-1669.

Wang H Y, Lin S, Allen J P, et al. Protein dynamics control the kinetics of initial electron transfer in photosynthesis [J]. Science, 2007, 316(5825):747-750.

Wang H Y, Lin S, Katilius E, et al. Unusual temperature dependence of photosynthetic electron transfer due to protein dynamics [J]. J. Phys. Chem.B, 2009, 113(3):818-824.

Wang H Y, Lin S, Woodbury N W. Excitation wavelength dependence of primary charge separation in reaction centers from rhodobacter sphaeroides [J]. J. Phys. Chem.B, 2008, 112(45):14296-14301.

Roberts J A, Holten D, Kirmaier C. Primary events in photosynthetic reaction centers with multiple mutations near the photoactive electron carriers [J]. J. Phys. Chem.B, 2001, 105(23):5575-5584.

Kirmaier C, Holten D, Bylina E J, et al. Electron transfer in a genetically modified bacterial reaction center containing a heterodimer [J]. Proc. Natl. Acad. Sci. USA, 1988, 85(20):7562-7566.

Hammes S L, Mazzola L, Boxer S G. Stark spectroscopy of the rhodobacter sphaeroides reaction center heterodimer mutant [J]. Proc. Natl. Acad. Sci. USA, 1990, 87(15):5682-5686.

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