Journal
FEMS MICROBIOLOGY LETTERS
Volume 190, Issue 1, Pages 147-150Publisher
ELSEVIER SCIENCE BV
DOI: 10.1111/j.1574-6968.2000.tb09277.x
Keywords
tetracycline antiporter; tetracycline resistance; membrane integrity; nichel sensitivity; osmotic sensitivity; Escherichia coli
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Expression of tetA(C) in Escherichia coli confers resistance to tetracycline as well as sensitivity to nickel and cadmium salts, lipophilic chelating agents, and aminoglycoside antibiotics. In this report we determine that high-level expression of tetA(C) also confers an osmotic sensitivity. The osmotic-sensitive phenotype is distinct from the tetracycline-resistant phenotype and can be localized to a domain contained within the first 98 amino acid residues of the TetA(C) polypeptide. (C) 2000 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.
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