title: In vitro and in vivo manipulations of bacteriophage Mu DNA: cloning of Mu ends and construction of mini-Mu's carrying selectable markers.
abstract: Recombinant plasmids carrying one or both ends of the bacteriophage Mu genome were constructed by molecular cloning. Transposable mini-Mu's with selectable markers (ampicillin resistance, kanamycin resistance or the entire lac operon of Escherichia coli) inserted between the Mu ends were also constructed. As a source of lac operon DNA, a pBR322 derivative with a 27 kb insert containing the lac operon was constructed. The plasmids with both ends of Mu (mini-Mu's) conferred full Mu immunity upon the host cells. However, the same mini-Mu's containing kan or lac inserts were defective in immunity. A summary of the construction and physical characterization, including restriction endonuclease cleavage maps and some of the biological properties of the plasmids, is presented.
mesh_terms: D010583:Bacteriophage mu / Q000235:genetics*; D003001:Cloning, Molecular / Q000379:methods; D004262:DNA Restriction Enzymes; D004251:DNA Transposable Elements; D004274:DNA, Recombinant; D004279:DNA, Viral / Q000235:genetics*; D004926:Escherichia coli / Q000235:genetics; D005822:Genetic Vectors; D007763:Lac Operon; D010957:Plasmids
chemical_list: D004251:DNA Transposable Elements; D004274:DNA, Recombinant; D004279:DNA, Viral; D004262:DNA Restriction Enzymes