Aryl hydrocarbons as inducers of cytochrome P-450 in Acinetobacter calcoaceticus |
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Authors: | Otmar Asperger Birgit Stüwer Hans-Peter Kleber |
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Affiliation: | (1) Sektion Biowissenschaften, Bereich Biochemie, Karl-Marx-Universität, Talstraße 33, DDR-7010 Leipzig, German Democratic Republic |
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Abstract: | Summary The inducibility of cytochrome P-450 in Acinetobacter calcoaceticus by some compounds known as typical inducers of hepatic cytochromes P-450 was investigated. Besides biphenyl also indene and phenanthrene are inducers, whereas compounds of the so-called phenobarbital type are not. Biphenyl appears to be the most effective inducer with regard to the yield of cytochrome P-450/mg of cell protein. By addition of the compounds in the vapour phase an induction of the protein by naphthalene could be demonstrated. The results are indicative of the existence of bacterial cytochromes P-450 that resemble hepatic cytochromes. |
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