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List of Publications of the Chair

Intergeneric transfer of the Enterococcus faecalis plasmid pIP501 to Escherichia coli and Streptomyces lividans and sequence analysis of its tra region.
Citation key Kurenbach2003
Author Kurenbach, B. and Bohn, C. and Prabhu, J. and Abudukerim, M. and Szewzyk, U. and Grohmann, E.
Pages 86–93
Year 2003
DOI 10.1016/S0147-619X(03)00044-1
Journal Plasmid
Volume 50
Number 1
Month Jul
Institution Department for Microbial Ecology, University of Technology Berlin, D-10587 Berlin, Germany.
Abstract The nucleotide sequence of the transfer (tra) region of the multiresistance broad-host-range Inc18 plasmid pIP501 was completed. The 8629-bp DNA sequence encodes 10 open reading frames (orf), 9 of them are possibly involved in pIP501 conjugative transfer. The putative pIP501 tra gene products show highest similarity to the respective ORFs of the conjugative Enterococcus faecalis plasmids pRE25 and pAMbeta1, and the Streptococcus pyogenes plasmid pSM19035, respectively. ORF7 and ORF10 encode putative homologues of type IV secretion systems involved in transport of effector molecules from pathogens to host cells and in conjugative plasmid transfer in Gram-negative (G-) bacteria. pIP501 mobilized non-selftransmissible plasmids such as pMV158 between different E. faecalis strains and from E. faecalis to Bacillus subtilis. Evidence for the very broad-host-range of pIP501 was obtained by intergeneric conjugative transfer of pIP501 to a multicellular Gram-positive (G+) bacterium, Streptomyces lividans, and to G- Escherichia coli. We proved for the first time pIP501 replication, expression of its antibiotic resistance genes as well as functionality of the pIP501 tra genes in S. lividans and E. coli.
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Head of Chair

Prof. Dr. rer. nat. Ulrich Szewzyk
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Bärbel Minx
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Environmental Microbiology
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