title: Plasmid profile and construction of a small shuttle vector in Laribacter hongkongensis.
abstract: Among 21 human strains of Laribacter hongkongensis, small plasmids were observed in four strains, and large ones in six strains. The smallest, 3264-bp plasmid, pHLHK19, has only one ORF that encodes a putative replication initiator protein and a predicted origin of replication (ori) with a DnaA box, three 18-bp direct repeats and five pairs of inverted repeats. An Escherichia coli-L. hongkongensis shuttle vector was constructed by ligating the HindIII-digested pHLHK19, containing the replication initiator protein and ori of pHLHK19, to HindIII-digested pBK-CMV. This shuttle vector can propagate in E. coli and L. hongkongensis with good transformation efficiencies.
authors.affiliation: State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Room 423, University Pathology Building, Queen Mary Hospital Compound, Pokfulam, Hong Kong.
authors.forename: Patrick C Y
authors.initials: PC
authors.lastname: Woo
authors.forename: Shirley S L
authors.initials: SS
authors.lastname: Ma
authors.forename: Jade L L
authors.initials: JL
authors.lastname: Teng
authors.forename: Maria W S
authors.initials: MW
authors.lastname: Li
authors.forename: Susanna K P
authors.initials: SK
authors.lastname: Lau
authors.forename: Kwok-yung
authors.initials: KY
authors.lastname: Yuen
mesh_terms: D001483:Base Sequence; D004265:DNA Helicases / Q000235:genetics; D004268:DNA-Binding Proteins / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics; D005822:Genetic Vectors / Q000235:genetics*; D006801:Humans; D008969:Molecular Sequence Data; D009346:Neisseriaceae / Q000235:genetics*; D016366:Open Reading Frames / Q000235:genetics; D010957:Plasmids / Q000235:genetics*; D018741:Replication Origin / Q000235:genetics; D015534:Trans-Activators / Q000235:genetics; D014169:Transformation, Bacterial
chemical_list: D004268:DNA-Binding Proteins; D015534:Trans-Activators; C045264:replication initiator protein; D004265:DNA Helicases