title: Characterization of a mini plasmid isolated from Shigella sonnei.
abstract: A multicopy plasmid, 2.1 kb in size, was isolated from Shigella sonnei and named pKYM. This plasmid is cryptic and isolated along with pKY-1, a ColE1-like plasmid. In this paper, we report the physical map of pKYM and some characters required for its multiplication. The replication of the plasmid DNA does not require DNA polymerase I but depends on protein(s) produced by itself. The plasmid is poorly mobilized by the F factor.
mesh_terms: D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes; D004269:DNA, Bacterial / Q000302:isolation & purification; D004274:DNA, Recombinant / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics; D005816:Genetic Complementation Test; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D010957:Plasmids; D012764:Shigella sonnei / Q000235:genetics*; D014169:Transformation, Bacterial
chemical_list: D004269:DNA, Bacterial; D004274:DNA, Recombinant; D004262:DNA Restriction Enzymes