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  • Title: Relationship of dithiothreitol-dependent microsomal vitamin K quinone and vitamin K epoxide reductases inhibition of epoxide reduction by vitamin K quinone.
    Author: Preusch PC, Suttie JW.
    Journal: Biochim Biophys Acta; 1984 Mar 22; 798(1):141-3. PubMed ID: 6704420.
    Abstract:
    Vitamin K quinone was shown to be an effective inhibitor of vitamin K epoxide reduction by whole rat liver microsomes. Observation of inhibition was dependent upon the mode of addition of the substrate and inhibitor suggesting segregation of the compounds into different microsomal vesicles under certain conditions. The result is consistent with reduction of both vitamin K quinone and vitamin K epoxide by a single enzyme or a multisite enzyme complex.
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