Relationship of dithiothreitol-dependent microsomal vitamin K quinone and vitamin K epoxide reductases inhibition of epoxide reduction by vitamin K quinone.

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… (More)

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