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ampC beta-lactamase hyperproduction in Escherichia coli: natural ampicillin resistance generated by horizontal chromosomal DNA transfer from Shigella.

Six ampicillin-resistant clinical isolates of Escherichia coli that hyperproduced the chromosomal ampC beta-lactamase were studied. By DNA sequence analysis, we found that five of them were identical over an entire 449-base-pair sequence and carried a novel strong ampC promoter [Olsson, O., Bergströ...

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Bibliografske podrobnosti
izdano v:Proc Natl Acad Sci U S A
Main Authors: Olsson, O, Bergström, S, Lindberg, F P, Normark, S
Format: Artigo
Jezik:Inglês
Izdano: National Academy of Sciences 1983
Teme:
Online dostop:https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC534379/
https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/6369321/
https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.80.24.7556
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