beta-lactamase

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Related to Betalactamase: ESBL

beta-lactamase

[¦bād·ə ′lak·tə‚mās]
(microbiology)
A bacterial enzyme that catalyzes the hydrolysis of the lactam ring in some penicillin antibiotics, rendering them ineffective.
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First report of the emergence of CTX-M-type extended-spectrum betalactamases (ESBLs) as the predominant ESBL isolated in a U.
Occurrence and detection of AmpC betalactamases among Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis isolates at a veterans medical center.
NDM-1]) and class C (blaAmpC) betalactamases as well as the mobile genetic elements (ISEcp1, ISCR1 (ORF513), IS26 and Sul-1 type integrons).
Functional metagenomics reveals diverse betalactamases in a remote Alaskan soil.
NVMM-richtlijn voor screening en confirmatie van extended-spectrum betalactamases in Enterobacteriaceae.
The production of extended-spectrum betalactamases was also evaluated by the phenotypic confirmatory tests by the disc diffusion method.
Novel method for detection of betalactamases by using a chromogenic cepholosporin substrate.