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  • Title: Conformation-dependent participation of the protein in electron equivalent transfer to cytochrome c.
    Author: Shafferman A, Stein G.
    Journal: Biochim Biophys Acta; 1977 Oct 12; 462(1):161-70. PubMed ID: 20947.
    Abstract:
    When ferricytochrome c is reduced by H atoms (produced by pulse radiolysis) at neutral pH where it is in a closed protein configuration, a considerable percentage of the reduction proceeds through electron equivalent transfer via the protein. At pH 2.0, where cytochrome c is in an open configuration, H atoms reduce by adding directly to the heme porphyrin. The intermediate then observed is identified through similarity with that formed on ferriheme alone.
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