Electron spin echo of spin-polarised radical pairs in intact and quinone-reconstituted plant photosystem I reaction centres

被引：50

作者：

Dzuba, SA

Hara, H

Kawamori, A

Iwaki, M

Itoh, S

Tsvetkov, YD

机构：

[1] KWANSEI GAKUIN UNIV, FAC SCI, NISHINOMIYA, HYOGO 662, JAPAN

[2] RUSSIAN ACAD SCI, INST CHEM KINET & COMBUST, NOVOSIBIRSK 630090, RUSSIA

[3] NATL INST BASIC BIOL, OKAZAKI, AICHI 444, JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 264卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(96)01302-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Light-induced spin-polarised P700(+)A(1)(-) pairs in intact and quinone-reconstituted photosystem I reaction centres were studied by electron spin echo (ESE) spectroscopy. The observed strong ESE envelope modulation was attributed to magnetic dipolar and exchange interactions in the pairs. The values of these interactions were derived from Fourier-transformed time traces and appeared to be D = - 1.71 +/- 0.05 G and J = 0.010 +/- 0.015 G, respectively. A magnetic field effect on the radical pair lifetime induced by microwave pumping was observed. The reconstituted 2,3-dibromo-1,4-naphthoquinone was shown to be located in the same (A(1)) site as the native phylloquinone.

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页码：238 / 244

页数：7

相关论文

共 21 条

[1]

BITTL R, UNPUB Z PHYS CHEM

[2] Control of radical pair lifetimes by microwave irradiation. Application to photosynthetic reaction centres [J].

Dzuba, SA ;

Proskuryakov, II ;

Hulsebosch, RJ ;

Bosch, MK ;

Gast, P ;

Hoff, AJ .

CHEMICAL PHYSICS LETTERS, 1996, 253 (3-4) :361-366

[3] ESEEM STUDY OF SPIN-SPIN INTERACTIONS IN SPIN-POLARIZED P(+)Q(A)(-) PAIRS IN THE PHOTOSYNTHETIC PURPLE BACTERIUM RHODOBACTER-SPHAEROIDES R26 [J].

DZUBA, SA ;

GAST, P ;

HOFF, AJ .

CHEMICAL PHYSICS LETTERS, 1995, 236 (06) :595-602

[4] Structure of photosystem I at 4.5 angstrom resolution: A short review including evolutionary aspects [J].

Fromme, P ;

Witt, HT ;

Schubert, WD ;

Klukas, O ;

Saenger, W ;

Krauss, N .

BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS, 1996, 1275 (1-2) :76-83

[5] TRANSIENT EPR SPECTROSCOPY OF THE CHARGE SEPARATED STATE P+Q- IN PHOTOSYNTHETIC REACTION CENTERS - COMPARISON OF ZN-SUBSTITUTED RHODOBACTER-SPHAEROIDES R-26 AND PHOTOSYSTEM-I [J].

FUCHSLE, G ;

BITTL, R ;

VANDEREST, A ;

LUBITZ, W ;

STEHLIK, D .

BIOCHIMICA ET BIOPHYSICA ACTA, 1993, 1142 (1-2) :23-35

[6]

Golbeck JH., 1994, The molecular biology of cyanobacteria, P319

[7] EXTRACTION OF VITAMIN-K-1 FROM PHOTOSYSTEM-I PARTICLES BY TREATMENT WITH DIETHYL-ETHER AND ITS EFFECTS ON THE A1- ELECTRON-PARAMAGNETIC-RES SIGNAL AND SYSTEM-I PHOTOCHEMISTRY [J].

ITOH, S ;

IWAKI, M ;

IKEGAMI, I .

BIOCHIMICA ET BIOPHYSICA ACTA, 1987, 893 (03) :508-516

[8]

ITOH S, 1992, N-HOLLAND D, P527

[9] Delta G(0) dependence of the electron transfer rate in the photosynthetic reaction center of plant photosystem I: Natural optimization of reaction between chlorophyll a (A(0)) and quinone [J].

Iwaki, M ;

Kumazaki, S ;

Yoshihara, K ;

Erabi, T ;

Itoh, S .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (25) :10802-10809

[10] ELECTRON-TRANSFER IN SPINACH PHOTOSYSTEM-I REACTION CENTER CONTAINING BENZOQUINONE, NAPHTHOQUINONE AND ANTHRAQUINONES IN PLACE OF PHYLLOQUINONE [J].

IWAKI, M ;

ITOH, S .

FEBS LETTERS, 1989, 256 (1-2) :11-16