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

Research output: Contribution to journalArticle

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, 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.

Original languageEnglish (US)
Pages (from-to)266-270
Number of pages5
JournalBBA - Bioenergetics
Volume1098
Issue number2
DOIs
StatePublished - Jan 16 1992
Externally publishedYes

Fingerprint

Synechococcus
Photosystem I Protein Complex
Sulfur
Crystal orientation
Tensors
Paramagnetic resonance
Iron
Single crystals
Crystals
Temperature

Keywords

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

ASJC Scopus subject areas

  • Biophysics

Cite this

Low-temperature EPR on single crystals of photosystem I : study of the iron-sulfur center FA. / Brettel, Klaus; Sieckmann, Ina; Fromme, Petra; van der Est, Arthur; Stehlik, Dietmar.

In: BBA - Bioenergetics, Vol. 1098, No. 2, 16.01.1992, p. 266-270.

Research output: Contribution to journalArticle

Brettel, Klaus ; Sieckmann, Ina ; Fromme, Petra ; van der Est, Arthur ; Stehlik, Dietmar. / Low-temperature EPR on single crystals of photosystem I : study of the iron-sulfur center FA. In: BBA - Bioenergetics. 1992 ; Vol. 1098, No. 2. pp. 266-270.
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