Complete Sequence of pSAM7, an IncX4 Plasmid Carrying a Novel bla[sub]CTX-M-14b Transposition Unit Isolated from ' Escherichia coli ' and ' Enterobacter cloacae ' from cattle

Stokes, M.O., AbuOun, M., Umur, S., Wu, G., Partridge, S. R., Mevius, D. J., Coldham, N. G. and Fielder, M. D. (2013) Complete Sequence of pSAM7, an IncX4 Plasmid Carrying a Novel bla[sub]CTX-M-14b Transposition Unit Isolated from ' Escherichia coli ' and ' Enterobacter cloacae ' from cattle. Antimicrobial Agents and Chemotherapy, 57(9), pp. 4590-4594. ISSN (print) 0066-4804

Abstract

The same plasmid carrying blaCTX-M-14b was identified from an Escherichia coli isolate and an Enterobacter cloacae isolate collected from cattle in the United Kingdom by complete plasmid sequencing. This 35,341-bp plasmid, pSAM7, had an IncX4 backbone that is 99% identical to that of pJIE143 from a human isolate in Australia. PCR screening identified pSAM7-like plasmids in three other E. coli isolates of different multilocus sequence types isolated from cattle on different farms in the United Kingdom.

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