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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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Detalhes bibliográficos
Main Authors: Normark, Staffan, Edlund, Thomas, Grundström, Thomas, Bergström, Sven, Wolf-Watz, Hans
Formato: Artigo
Idioma:Inglês
Publicado em: 1977
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Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC235595/
https://ncbi.nlm.nih.gov/pubmed/336612
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