Low-temperature EPR on single crystals of photosystem I: study of the iron-sulfur center FA

Klaus Brettel; Ina Sieckmann; Petra Fromme; Arthur van der Est; Dietmar Stehlik

doi:10.1016/S0005-2728(05)80346-9

Low-temperature EPR on single crystals of photosystem I: study of the iron-sulfur center FA

Klaus Brettel, Ina Sieckmann, Petra Fromme, Arthur van der Est, Dietmar Stehlik

Arizona State University

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Results of the first low-temperature EPR study of single crystals of Photosystem I from Synechococcus sp. are reported. The predominant signals in the orientation-dependent spectra are due to the photoreduced iron-sulfur-center, F_A. Six magnetically inequivalent F_A^--centers per unit cell can be resolved. Their g-tensors and the orientation of their principal axes relative to the crystal axes are determined.

Original language	English
Pages (from-to)	266-270
Number of pages	5
Journal	Biochimica et Biophysica Acta - Bioenergetics
Volume	1098
Issue number	2
DOIs	https://doi.org/10.1016/S0005-2728(05)80346-9
Publication status	Published - Jan 16 1992

Keywords

(Synechococcus sp.)
EPR
Iron-sulfur center
Photosystem I
Single crystal

ASJC Scopus subject areas

Biophysics

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title = "Low-temperature EPR on single crystals of photosystem I: study of the iron-sulfur center FA",

abstract = "Results of the first low-temperature EPR study of single crystals of Photosystem I from Synechococcus sp. are reported. The predominant signals in the orientation-dependent spectra are due to the photoreduced iron-sulfur-center, FA. Six magnetically inequivalent FA--centers per unit cell can be resolved. Their g-tensors and the orientation of their principal axes relative to the crystal axes are determined.",

keywords = "(Synechococcus sp.), EPR, Iron-sulfur center, Photosystem I, Single crystal",

author = "Klaus Brettel and Ina Sieckmann and Petra Fromme and {van der Est}, Arthur and Dietmar Stehlik",

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T2 - study of the iron-sulfur center FA

AU - Brettel, Klaus

AU - Sieckmann, Ina

AU - Fromme, Petra

AU - van der Est, Arthur

AU - Stehlik, Dietmar

PY - 1992/1/16

Y1 - 1992/1/16

N2 - Results of the first low-temperature EPR study of single crystals of Photosystem I from Synechococcus sp. are reported. The predominant signals in the orientation-dependent spectra are due to the photoreduced iron-sulfur-center, FA. Six magnetically inequivalent FA--centers per unit cell can be resolved. Their g-tensors and the orientation of their principal axes relative to the crystal axes are determined.

AB - Results of the first low-temperature EPR study of single crystals of Photosystem I from Synechococcus sp. are reported. The predominant signals in the orientation-dependent spectra are due to the photoreduced iron-sulfur-center, FA. Six magnetically inequivalent FA--centers per unit cell can be resolved. Their g-tensors and the orientation of their principal axes relative to the crystal axes are determined.

KW - (Synechococcus sp.)

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KW - Iron-sulfur center

KW - Photosystem I

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