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© Melanie Blokesch, EPFL
Flagellated Vibrio cholerae
Publication : Research in microbiology

Construction of an improved RP4 (RK2)-based conjugative system

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Research in microbiology - 27 Jun 2008

Babic A, Guérout AM, Mazel D

Link to Pubmed [PMID] – 18638548

Res. Microbiol. 2008 Sep-Oct;159(7-8):545-9

In many bacteria, gene replacement can only be achieved using RP4-based conjugative systems where exogenous DNA is delivered to the recipient on conditionally replicating plasmids carrying an oriT(RP4). In the commonly used strains SM10 and S17-1 conjugative functions are provided by an RP4 plasmid inserted in the chromosome. Those strains, besides mobilizing oriT(RP4)-carrying plasmids, also transfer their own chromosomal genes, which can be inconvenient for several reasons. We describe here a new version of an RP4-based conjugative system that allows for efficient transfer of mobilizable plasmids without the transfer of chromosomal genes, providing fully controlled and efficient exogeneous DNA delivery to non-transformable bacteria.

http://www.ncbi.nlm.nih.gov/pubmed/18638548