Electron paramagnetic resonance and optical spectroscopic evidence for interaction between siroheme and tetranuclear iron-sulfur center prosthetic groups in spinach ferredoxin-nitrite reductase

Biochemistry ◽  
1983 ◽  
Vol 22 (21) ◽  
pp. 5048-5054 ◽  
Author(s):  
James O. Wilkerson ◽  
Peter A. Janick ◽  
Lewis M. Siegel
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Nitrite Reductase ◽  
Paramagnetic Resonance ◽  
Spectroscopic Evidence ◽  
Iron Sulfur ◽  
Iron Sulfur Center ◽  
Electron Paramagnetic ◽  
Prosthetic Groups

Spectroscopic Evidence for the Formation of the Mercurous Ion in Irradiated Acetates

1971 ◽  
Vol 49 (17) ◽  
pp. 2868-2873 ◽  
Author(s):  
R. S. Eachus ◽  
F. G. Herring
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Optical Spectroscopy ◽  
Mercuric Acetate ◽  
Cadmium Acetate ◽  
Γ Irradiation ◽  
Paramagnetic Resonance ◽  
Spectroscopic Evidence ◽  
Acetate Trihydrate ◽  
Electron Paramagnetic ◽  
Mercurous Ion

The Hg(I) center has been produced by γ-irradiation both in Hg(II) doped cadmium acetate trihydrate and pure mercuric acetate. Both electron paramagnetic resonance and optical spectroscopy have been used to identify this species. The results indicate that the Hg(I) ion is produced in a covalent environment.

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