Abstract
WHEN an alkaline extract of yeast is saturated with ammonium sulphate there is precipitated, with the protein, cytochrome ‘C’ and a complex iron compound giving no visible spectrum. The latter can be separated from the proteins slowly by ultra-filtration. It remains in solution when the protein, with the cytochrome ‘C’, is precipitated by trichloracetic acid.
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COOLIDGE, T. Oxidation Reduction Potential of Complex Iron Compounds in Yeast. Nature 128, 223 (1931). https://doi.org/10.1038/128223c0
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DOI: https://doi.org/10.1038/128223c0