title: Highly efficient method for introducing successive multiple scarless gene deletions and markerless gene insertions into the Yersinia pestis chromosome.
abstract: An efficient two-step recombination method for markerless gene deletion and insertion that can be used for repetitive genetic modification in Yersinia pestis was developed. The method combines lambda Red recombination and counterselective screening (sacB gene) and can be used for genetic modification of Y. pestis to construct live attenuated vaccines.
authors.affiliation: The Biodesign Institute, Center for Infectious Diseases and Vaccinology, Arizona State University, Tempe, AZ 85287-5401, USA.
authors.forename: Wei
authors.initials: W
authors.lastname: Sun
authors.forename: Shifeng
authors.initials: S
authors.lastname: Wang
authors.forename: Roy
authors.initials: R
authors.lastname: Curtiss
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics; D002876:Chromosomes, Bacterial / Q000235:genetics*; D017353:Gene Deletion; D015964:Gene Expression Regulation, Bacterial; D005818:Genetic Engineering / Q000379:methods*; D005819:Genetic Markers / Q000235:genetics; D016254:Mutagenesis, Insertional; D011995:Recombination, Genetic; D015010:Yersinia pestis / Q000235:genetics*
chemical_list: D001426:Bacterial Proteins; D005819:Genetic Markers