Cloning with Mud-P22 hybrid prophages: mapping of IS200 elements on the chromosome of Salmonella typhimurium LT2 |
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Authors: | C. R. Beuzón J. Casadesús |
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Affiliation: | Departamento de Genética, Facultad de Biologìa, Universidad de Sevilla, Apartado 1095, E-41080 Sevilla, Spain Fax: +34-5-455-7104; e-mail: genbac@cica.es, ES
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Abstract: | Specific DNA fragments from the chromosome of Salmonella typhimurium LT2 were packaged in P22 capsids by induction of “locked-in” Mud-P22 hybrid prophages. High yields of the packaged DNA were obtained upon capsid disruption. DNA hybridization using a fragment of insertion sequence IS200 as probe permitted physical mapping of IS200 elements on the chromosome of S. typhimurium LT2 within?±1 centisome (CS). IS200 copies were found at the following locations: CS 24 (copy VI), CS 53 (copy V), CS 63 (copy I), CS 80 (copy II) and CS 93 (copy III). Copy IV, previously mapped near fliA (CS 42), was not included in our study. |
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