SODIUM IRON FLUOROPHOSPHITE GLASSES PART II. EPR AND MÖSSBAUER RESONANCE STUDY
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چکیده
منابع مشابه
Mössbauer, EPR, and Modeling Study of Iron Trafficking and Regulation in Δccc1 and CCC1-up Saccharomyces cerevisiae
Strains lacking and overexpressing the vacuolar iron (Fe) importer CCC1 were characterized using Mössbauer and EPR spectroscopies. Vacuolar Fe import is impeded in Δccc1 cells and enhanced in CCC1-up cells, causing vacuolar Fe in these strains to decline and accumulate, respectively, relative to WT cells. Cytosolic Fe levels should behave oppositely. The Fe content of Δccc1 cells grown under lo...
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A purification procedure for the periplasmic hydrogenase from Desulfovibrio vulgaris ( Hildenborough , National Collection of Industrial Bacteria 8303) is reported. The purified hydrogenase has a specific activity of 4800 units per mg of protein. Plasma emission studies reveal that this highly active hydrogenase is free of nickel and contains 11 (+/- 1) nonheme iron atoms per molecule. A combin...
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A series of sodium iron germanate glasses, with general composition 0.3Na2O±xFe2O3±(0.7 ) x)GeO2 (06 x6 0:15), has been prepared by conventional melting and casting. The chemical states of the various elemental components have been investigated by X-ray photoelectron spectroscopy (XPS) from fracture surfaces produced in situ. The analysis of the Fe 3p core level spectra of the glasses which con...
متن کاملComments on "the interpretation of the EPR and Mössbauer spectra of two-iron, one-electron iron-sulfur proteins".
SUMMARY Evidence is presented indicating that the note mentioned in the title is incorrect in two important aspects. 1.) According to our results of ENDOR spectroscopy and computer simulations of Mijssbauer spectra, the conclusions drawn are based on an erroneous interpretation of the Miissbauer spectra. 2.) According to quotations from the literature , previous interpretations of experimental ...
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Benzoyl-CoA reductase catalyzes the two-electron transfer from a reduced ferredoxin to the aromatic ring of benzoyl-CoA; this reaction is coupled to stoichiometrical ATP hydrolysis. A very low reduction potential (less than -1 V) is required for the first electron transfer to the aromatic ring. In this work the nature of the redox centers of purified benzoyl-CoA reductase from Thauera aromatica...
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ژورنال
عنوان ژورنال: Le Journal de Physique Colloques
سال: 1980
ISSN: 0449-1947
DOI: 10.1051/jphyscol:1980194