THE G = 2 MULTILINE EPR SIGNAL OF THE S2 STATE OF THE PHOTOSYNTHETIC OXYGEN-EVOLVING COMPLEX ORIGINATES FROM A GROUND SPIN STATE

被引：19

作者：

BRITT, RD

LORIGAN, GA

SAUER, K

KLEIN, MP

ZIMMERMANN, JL

机构：

[1] LAWRENCE BERKELEY LAB,DIV STRUCT BIOL,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

[3] CENS,DEPT BIOL CELLULAIRE & MOLEC,BIOENERGET SECT,CNRS,URA 1290,F-91190 GIF SUR YVETTE,FRANCE

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1992年 / 1140卷 / 01期

关键词：

PHOTOSYSTEM-II; OXYGEN-EVOLVING COMPLEX; MANGANESE; EPR; PULSED; ELECTRON SPIN ECHO;

D O I：

10.1016/0005-2728(92)90024-V

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The amplitude of the g = 2 Mn 'multiline' EPR signal of the S2 state of the photosynthetic oxygen-evolving complex varies inversely with temperature, indicating that this signal arises from a ground spin state. Electron spin echo experiments at temperatures of 4.2 K and 1.4 K show such Curie-law behavior of the g = 2 multiline EPR signal, as do continuous-wave EPR experiments performed at a non-saturating microwave power in the range from 15.0 K to 4.2 K.

引用

页码：95 / 101

页数：7

共 26 条

[1]

Abragam A., 2012, ELECT PARAMAGNETIC R, V2, P317

[2]

BABCOCK GT, 1987, PHOTOSYNTHESIS, P125

[3] A HIGHLY RESOLVED, OXYGEN-EVOLVING PHOTOSYSTEM-II PREPARATION FROM SPINACH THYLAKOID MEMBRANES - ELECTRON-PARAMAGNETIC-RES AND ELECTRON-TRANSPORT PROPERTIES [J].