The cryptic tetracycline resistance determinant on Tn4400 mediates tetracycline degradation as well as tetracycline efflux
نویسندگان
چکیده
منابع مشابه
Functions of tetracycline efflux proteins that do not involve tetracycline.
Tet(L) and Tet(K) are specific antibiotic-resistance determinants. They catalyze efflux of a tetracycline(Tc)-divalent metal complex in exchange for protons, as do other Tet efflux proteins. These Tet proteins also catalyze Na+ and K+ exchange for protons. Each of the "cytoplasmic substrates", Na+, K+ and the Tc-metal ion complex, can also be exchanged for K+, a catalytic mode that accounts for...
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Tetracycline resistance encoded by four genetically different determinants residing on plasmids in Escherichia coli was shown to be associated in each case with an energy-dependent decrease in accumulation of the antibiotic in whole cells in which resistance had been induced. The different class determinants examined were those on plasmids RP1 (class A), R222 (class B), R144 (class C), and RA1 ...
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Like animals and people, insects can serve as both collectors and disseminators of antibiotic resistance genes, as exquisitely demonstrated by a recent study (B. Tian, N. H. Fadhil, J. E. Powell, W. K. Kwong, and N. A. Moran, mBio 3[6]:e00377-12, doi:10.1128/mBio.00377-12, 2012). Notably, the relatively confined ecosystem of the honeybee gut demonstrates a large propensity for harboring a diver...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1988
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.32.12.1797