Characterization of a New Extended-spectrum Beta-lactamase (TEM-87) Isolated in Proteus Mirabilis During an Italian Survey
Overview
Authors
Affiliations
A new natural TEM derivative, named TEM-87, was identified in a Proteus mirabilis isolate from an Italian hospital. Compared to TEM-1, TEM-87 contains the following mutations: E104K, R164C, and M182T. Kinetic analysis of TEM-87 revealed extended-spectrum activity against oxyimino cephalosporins (preferentially ceftazidime) and aztreonam. Expression of blaTEM-87 in Escherichia coli decreased the host susceptibility to these drugs.
TEM-184, a Novel TEM-Derived Extended-Spectrum β-Lactamase with Enhanced Activity against Aztreonam.
Piccirilli A, Perilli M, Amicosante G, Conte V, Tascini C, Rossolini G Antimicrob Agents Chemother. 2018; 62(9).
PMID: 29941651 PMC: 6125571. DOI: 10.1128/AAC.00688-18.
Corvec S, Beyrouthy R, Cremet L, Aubin G, Robin F, Bonnet R Antimicrob Agents Chemother. 2013; 57(5):2410-2.
PMID: 23478954 PMC: 3632918. DOI: 10.1128/AAC.01761-12.
Multidrug-resistant Proteus mirabilis bloodstream infections: risk factors and outcomes.
Tumbarello M, Trecarichi E, Fiori B, Losito A, DInzeo T, Campana L Antimicrob Agents Chemother. 2012; 56(6):3224-31.
PMID: 22450979 PMC: 3370815. DOI: 10.1128/AAC.05966-11.
Vignoli R, Cordeiro N, Garcia V, Mota M, Betancor L, Power P Antimicrob Agents Chemother. 2006; 50(2):781-4.
PMID: 16436745 PMC: 1366896. DOI: 10.1128/AAC.50.2.781-784.2006.
Biochemical characterization of laboratory mutants of extended-spectrum beta-lactamase TEM-60.
Caporale B, Franceschini N, Perilli M, Segatore B, Rossolini G, Amicosante G Antimicrob Agents Chemother. 2004; 48(9):3579-82.
PMID: 15328132 PMC: 514782. DOI: 10.1128/AAC.48.9.3579-3582.2004.