Composite IS1-tetracycline resistance elements in aerobactin-encoding FIme plasmids from epidemic Salmonella wien.
Class B tetracycline resistance determinants have been identified in two aerobactin-encoding FIme plasmids representative of those isolated from epidemic Salmonella wien. Genetic data, restriction enzyme analysis of recombinant and mutant plasmids, and Southern blot hybridizations indicate that in both plasmids the class B determinant so far found and described only on Tn10-like transposons is part of a different genetic element. This composite insertion sequence element is about 7 kilobases long and has copies of insertion sequence IS1 at the ends.
Casalino
M
M
Dipartimento di Biologia Cellulare e dello Sviluppo, Università di Roma La Sapienza, Italy.
Nicoletti
M
M
Junakovic
N
N
Maimone
F
F
D015139:Blotting, Southern; D004262:DNA Restriction Enzymes; D004251:DNA Transposable Elements; D004269:DNA, Bacterial / Q000032:analysis / Q000235:genetics; D004274:DNA, Recombinant; D004587:Electrophoresis, Agar Gel; D004926:Escherichia coli / Q000235:genetics; D005798:Genes, Bacterial; D006877:Hydroxamic Acids; D009154:Mutation; D009693:Nucleic Acid Hybridization; D011815:R Factors; D012091:Repetitive Sequences, Nucleic Acid; D012475:Salmonella / Q000187:drug effects / Q000235:genetics*; D013753:Tetracycline Resistance / Q000235:genetics*
D004251:DNA Transposable Elements; D004269:DNA, Bacterial; D004274:DNA, Recombinant; D006877:Hydroxamic Acids; C031819:aerobactin; D004262:DNA Restriction Enzymes