Characterization of the Novel CMT Enzyme TEM-154
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چکیده
منابع مشابه
Characterization of the Novel CMT Enzyme TEM-154.
TEM-154, identified in Portugal in 2004, associated the substitutions observed in the extended-spectrum β-lactamase (ESBL) TEM-12 and in the inhibitor-resistant penicillinase (IRT) TEM-33. This enzyme exhibited hydrolytic activity against ceftazidime and a low level of resistance to clavulanic acid. Surprisingly, the substitution Met69Leu enhanced the catalytic efficiency of oxyimino β-lactams ...
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OBJECTIVES A relapse from Escherichia coli bloodstream infection was observed in a patient with acute leukaemia treated with ceftazidime for 7 days for febrile neutropenia. Whereas the original E. coli isolate was resistant to β-lactam/β-lactamase inhibitor combinations (EC1), the relapse E. coli isolate showed a similar phenotype but with resistance extended to ceftazidime (EC2). We investigat...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 2011
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.01359-10