Escherichia coli K-12 Mutants Hyperproducing Chromosomal Beta-Lactamase by Gene Repetitions

Escherichia coli K-12 ampicillin-resistant mutants hyperproducing chromosomal β-lactamase arose spontaneously from strains carrying ampA1 ampC(+). Such mutants were found even in a recA background. Two Amp(r)-100 strains were analyzed genetically. The Amp(r)-100 resistance level of both strains coul...

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Bibliografiske detaljer

Udgivet i:	J Bacteriol
Principais autores:	Normark, Staffan, Edlund, Thomas, Grundström, Thomas, Bergström, Sven, Wolf-Watz, Hans
Format:	Artigo
Sprog:	Inglês
Udgivet:	American Society for Microbiology (ASM) 1977
Fag:	Genetics and Molecular Biology
Online adgang:	https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC235595/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/336612/ https://ncbi.nlm.nih.govhttps://doi.org/10.1128/jb.132.3.912-922.1977
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