Abstract
Abstract The enzyme “DT diaphorase”, which mediates transfer of electrons from TPNH or DPNH to dichlorophenol-indophenol is abundant in the thyroid. In common with the enzyme described by Ernster and coworkers 1 in liver, the enzyme is largely present in the soluble portion of the cell, and is inhibited by bishydroxycoumarin, but not by antimycin A. Addition of FAD markedly augments activity. The enzyme appears to play little role in oxidative metabolism and could not be related to iodination of tyrosine by thyroid cell particles or a soluble iodinating enzyme derived from the particles.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Specialized Section on Enzymological Subjects
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