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  • Title: Distribution of newly synthesized DT-diaphorase in rat liver.
    Author: Edlund C, Elhammer A, Dallner G.
    Journal: Biosci Rep; 1982 Nov; 2(11):861-5. PubMed ID: 7159693.
    Abstract:
    The distribution, synthesis, transport, and glycosylation of rat-liver DT-diaphorase has been investigated. The enzyme could be isolated using specific antibodies, mainly from the soluble supernatant but also from microsomal vesicles, Golgi membranes, and mitochondria. 40% of the microsomal enzyme was located in the lumen or on the interior side of the membrane, the rest remaining as an integral non-extractable part of the membrane. Synthesis of DT-diaphorase takes place on both free and bound ribosomes, although it was found to be transported in a sequential manner from the rough to the smooth endoplasmic reticulum and also subsequently to the mitochondria. The rough and smooth microsomal DT-diaphorase contains covalently bound carbohydrate, but no sugar moiety could be detected bound to the cytoplasmic form of the enzyme.
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