| Literature DB >> 8239618 |
B A Rasmussen1, P A Bradford, J P Quinn, J Wiener, R A Weinstein, K Bush.
Abstract
Ceftazidime-resistant isolates of Escherichia coli and Klebsiella pneumoniae produced a plasmid-mediated beta-lactamase with a pI of 5.6 with biochemical characteristics comparable to those of the TEM-10 beta-lactamase. Plasmids from the two strains were nonidentical. Both TEM-10 sequences differed from TEM-1 by substitutions of Ser-162 and Lys-237. The nucleotide sequences of the two genes were identical except for three silent nucleotide substitutions corresponding to the nucleotide differences in the Tn2 TEM-1 or Tn3 TEM-1 genes. The original TEM-10 plasmid was identical to that found in the E. coli isolate and coded for a gene that corresponded to the TEM-10 beta-lactamase from Tn2.Entities:
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Year: 1993 PMID: 8239618 PMCID: PMC188106 DOI: 10.1128/AAC.37.9.1989
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191