TY - JOUR A1 - Maturová, M. A1 - Beckmann, Helga A1 - Wacker, Adolf T1 - Hemmung der steroidabhängigen Enzyminduktion bei Pseudomonas testosteroni mit Alkaloiden T2 - Zeitschrift für Naturforschung, B N2 - Induction of the enzyme Δ5-3-ketosteroid isomerase in Pseudomonas testosteroni was found to be strongly inhibited by reserpine and by the alkaloids of Vinca and Ergot. Morphine, colchicine and papaverine caused weaker inhibition whilst a series of other alkaloids were almost ineffective. Ergot alkaloids were inhibitory towards all steroids tested, androgens, oestrogens and progestagens, and a similar effect was shown with the other inducible enzymes, 3α- and 3β.17β-hydroxysteroid-dehydrogenase. Experiments with cell-free protein synthesis indicate that reserpine inhibits the induction of messenger RNA. Y1 - 2014 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/74875 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-748758 SN - 1865-7117 SN - 0932-0776 VL - 22.1967 IS - 6 SP - 621 EP - 626 PB - Verlag der Zeitschrift für Naturforschung CY - Tübingen ER -