Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:2.3.1.28 (chloramphenicol acetyltransferase)
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We isolated a new transposon, Tn2001, from the group P-2 plasmid Rms159-1 in Pseudomonas aeruginosa. Tn2001-encoded chloramphenicol resistance did not result from the formation of chloramphenicol acetyltransferase. Tn2001 was transposable between temperate phages and conjugative and nonconjugative plasmids belonging to various incompatibility groups, including P-1, P-3, P-4, P-5, P-7, and P-8 in P. aeruginosa. Transposition occurred independently of the general recombination ability of the Pseudomonas host, and its frequency varied between 10(-1) and 10(-8), depending upon the donor and recipient replicons. Tn2001 transposition also occurred in a recombination-deficient strain of Escherichia coli. Agarose gel electrophoresis and electron microscopic observations revealed that Tn2001 could transpose to different sites in the RP4 replicon and that the transposed deoxyribonucleic acid fragment was 2.1 kilobases long.
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PMID:Tn2001, a transposon encoding chloramphenicol resistance in Pseudomonas aeruginosa. 626 Jul 39