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. 1974 Jan;117(1):283–289. doi: 10.1128/jb.117.1.283-289.1974

Characterization of Three Plasmid Deoxyribonucleic Acid Molecules in a Strain of Streptococcus faecalis: Identification of a Plasmid Determining Erythromycin Resistance

D B Clewell 1, Y Yagi 1, G M Dunny 1, S K Schultz 1
PMCID: PMC246555  PMID: 4202995

Abstract

Three plasmids designated α, β, and γ, distinguishable by their molecular weights (6, 17, and 34 million, respectively) were isolated from Streptococcus faecalis strain DS-5 (ATCC 14508). Derivatives of this strain “cured” for erythromycin resistance lacked the β-plasmid. In the parent strain the β-plasmid was estimated to be present to the extent of one to two copies per chromosomal genome equivalent whereas the α- and γ-plasmids were about nine and five copies, respectively.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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