Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4359492 | Research in Microbiology | 2008 | 5 Pages |
Abstract
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 oriTRP4. 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 oriTRP4-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.
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Authors
Ana Babic, Anne-Marie Guérout, Didier Mazel,