[Coupling between 3-ketosteroid-delta'-dehydrogenase and the respiratory chain in the bacterium Arthrobacter globiformis].


Intact bacterial cells and their cytoplasmic membranes obtained by ultrasonic desintegration are able to induce dehydration of hydrocortisone to prednisolone that is coupled with O2 uptake. This reaction is inhibited by cyanide and 2-n-nonyl-4-hydroxyquinoline-N-oxide (HOQNO). Oxidation of hydrocortisone results in cytochrome reduction both in intact cells… (More)


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