Role of AmpR in the High Expression of the Plasmid-Encoded AmpC β-Lactamase CFE-1

ABSTRACT CFE-1 is a unique plasmid-encoded AmpC β-lactamase with the regulator gene ampR. It imparts high resistance to most cephalosporins with constitutive high-level β-lactamase activity. Here, the β-lactamase activities and expression levels of ampC with or without ampR were investigated. Result...

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Bibliographic Details
Main Authors: Ryuichi Nakano, Akiyo Nakano, Hisakazu Yano, Ryoichi Okamoto
Format: Article
Language:English
Published: American Society for Microbiology 2017-08-01
Series:mSphere
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/mSphere.00192-17