The pIT5 Plasmid Series, an Improved Toolkit for Repeated Genome Integration in E. coli
We describe a brand new set of instruments for inserting DNA into the bacterial chromosome. The system makes use of site-specific recombination reactions carried out by bacteriophage integrases to combine plasmids at as much as eight phage attachment websites in E. coli MG1655. The introduction of mutant loxP websites within the integrating plasmids permits repeated elimination of antibiotic resistance genes and different plasmid sequences...