Characterization of the Streptomyces lavendulae IMRU 3455 linear plasmid pSLV45

• Published in: Microbiology (Society for General Microbiology) Vol. 150; no. 6; pp. 1819 - 1827
• Main Authors: Hosted, Thomas J, Wang, Tim, Horan, Ann C
• Format: Journal Article
• Language: English
• Published: Reading Soc General Microbiol 01.06.2004; Society for General Microbiology
• Subjects: Bacterial plant pathogens; Bacterial Proteins - genetics; Bacterial Proteins - metabolism; Bacteriological methods and techniques used in bacteriology; Bacteriology; Biological and medical sciences; Conjugation, Genetic; DNA, Bacterial - analysis; Fundamental and applied biological sciences. Psychology; Gene Expression Regulation, Bacterial; Microbiology; Miscellaneous; Molecular Sequence Data; Open Reading Frames; Phytopathology. Animal pests. Plant and forest protection; Plasmids - genetics; Streptomyces - genetics; Streptomyces lavendulae; Transformation, Bacterial; Integration; Streptomycetaceae; Nucleotide sequence; Homologous recombination; Recipient; Marker; Strain; Actinomycetales; Plasmid; Resistance; Antibiotic; Streptomyces lavendulae; Apramycin; Development; Shuttle vector; Bacteria; Actinomycetes; Yield; Antibacterial agent
• ISSN: 1350-0872; 1465-2080
• DOI: 10.1099/mic.0.26994-0

New Lead Discovery, Schering Plough Research Institute, 2015 Galloping Hill Road, K15-C321-MS3600, Kenilworth, NJ 07033, USA Correspondence Thomas J. Hosted thomas.hosted{at}spcorp.com Streptomyces lavendulae IMRU 3455 contains two large linear plasmids designated pSLV45 (45 kb) and pSLV195 (195 kb). A cosmid, pSPRX604, containing 42 kb from pSLV45 was cloned and sequenced. pSLV45 was tagged with a hygromycin-resistance marker by homologous recombination to generate the derivatives pSLV45.680 and pSLV45.681. An apramycin-resistance marker was introduced into S. lavendulae IMRU 467 using the pSPR910 integration vector to yield the recipient strain SPW910. The self-transmissible nature of pSLV45 was determined by transfer of pSLV45.680 and pSLV45.681 from the donor strains SPW680 and SPW681 into the recipient strain SPW910. Southern analysis indicated the presence of hygromycin- and pSLV45-hybridizing sequences within SPW910 exconjugants. PFGE analysis confirmed pSLV45.680 and pSLV45.681 were transferred intact and formed freely replicating linear plasmids. Sequence analysis of pSPRX604 revealed genes predicted to be involved in plasmid transfer, partitioning and regulation. The transfer of the linear plasmid pSLV45 from S. lavendulae IMRU 3455 into S. lavendulae IMRU 467 may allow the development of pSLV45 as an actinomycete-to-actinomycete conjugative shuttle vector. Abbreviations: Ap R , apramycin resistance (-resistant); Hm R , hygromycin resistance (-resistant); RCR, rolling circle replicating; TP, terminally attached protein The GenBank/EMBL/DDBJ accession number for the sequences reported in this article is AY498874 .