title: Genome mapping and protein coding region identification using bacteriophage Mu.
abstract: Transposons such as bacteriophage Mu provide a means to clone bacterial genes as alternatives to using standard recombinant DNA technologies. A DNA-cloning and gene-expressing system has been developed with a bacteriophage Mu (DNA capacity of 38 kb) vector that combines the Mu transposition capabilities and a specialized promoter from bacteriophage T7. Genes cloned with this vector can be identified by transcription in vivo with T7 RNA polymerase and subsequent host translation. This system, illustrated with the characterization of a 35-kb region of the Escherichia coli K-12 chromosome, is applicable to other Enterobacteriaceae, which are hosts for Mu phage, and is potentially applicable to other bacteria, including Pseudomonas aeruginosa, which have Mu-like phage, and to other organisms for which high-frequency transposons are available.
authors.affiliation: Department of Molecular Genetics and Cell Biology, University of Chicago, IL 60637.
authors.forename: E A
authors.initials: EA
authors.lastname: Groisman
authors.forename: N
authors.initials: N
authors.lastname: Pagratis
authors.forename: M J
authors.initials: MJ
authors.lastname: Casadaban
mesh_terms: D010583:Bacteriophage mu / Q000235:genetics*; D001483:Base Sequence; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D004926:Escherichia coli / Q000235:genetics*; D005814:Genes, Viral; D008969:Molecular Sequence Data; D015345:Oligonucleotide Probes; D010957:Plasmids; D011401:Promoter Regions, Genetic; D015183:Restriction Mapping; D013604:T-Phages / Q000235:genetics*; D014158:Transcription, Genetic; D014764:Viral Proteins / Q000235:genetics* / Q000302:isolation & purification
chemical_list: D015345:Oligonucleotide Probes; D014764:Viral Proteins