Evaluation of CTX-M steady-state mRNA, mRNA half-life and protein production in various STs of Escherichia coli.

Abstract excerpt

OBJECTIVES: High levels of β-lactamase production can impact treatment with a β-lactam/β-lactamase inhibitor combination. Goals of this study were to: (i) compare the mRNA and protein levels of CTX-M-15- and CTX-M-14-producing Escherichia coli from 18 different STs and 10 different phylotypes; (ii) evaluate the mRNA half-lives and establish a role for chromosomal- and/or plasmid-encoded factors; and (iii)...

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