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. 1977 Mar;129(3):1601–1606. doi: 10.1128/jb.129.3.1601-1606.1977

Physical characterization of a plasmid cointegrate containing an F'his gnd element and the Salmonella typhimurium LT2 cryptic plasmid.

J J Manis, H J Whitfield
PMCID: PMC235140  PMID: 321435

Abstract

A recombinant plasmid (pAS19) isolated from a derivative of Salmonella typhimurium LT2, containing the strain LT2 cryptic plasmid and an F'his gnd element, has been physically characterized. The pAS19 plasmid contour length equals the sum of the contour lengths of the cryptic plasmid and F'his gnd element. Deoxyribonucleic acid (DNA)-DNA hybridization experiments demonstrated that whereas the pAS19 plasmid exhibits extensive DNA homology with both the cryptic plasmid and the F'his gnd element, there is little DNA homology between these latter two plasmids. The DNA fragmentation pattern of the pAS19 plasmid produced by the restriction endonuclease R-EcoRI is consistent with that expected for a composite plasmid cointegrate containing most, if not all, of the DNA sequences present in its two component plasmids.

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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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