title: A short GC-rich sequence involved in deletion formation of cloned DNA in E. coli.
abstract: A spontaneous deletion probably caused by rec A independent recombination between short-direct repeat sequences was observed in pUC19 plasmid carrying a piece of Streptomyces genomic DNA after culturing in liquid medium. The deletion removed an unknown portion of the cloned DNA and the BamHI-EcoRI part of the multiple cloning site with an additional flanking 111 bp from the vector. At the junction a 13 bp GC-rich DNA sequence highly homologous to a known spontaneous deletion hotspot was found.
authors.affiliation: Institute of Biology, University Medical School of Debrecen, Hungary.
authors.forename: A
authors.initials: A
authors.lastname: Sümegi
authors.forename: Z
authors.initials: Z
authors.lastname: Birkó
authors.forename: F
authors.initials: F
authors.lastname: Szeszák
authors.forename: S
authors.initials: S
authors.lastname: Vitális
authors.forename: S
authors.initials: S
authors.lastname: Biró
mesh_terms: D001482:Base Composition; D001483:Base Sequence; D003001:Cloning, Molecular; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics*; D004926:Escherichia coli / Q000235:genetics*; D005822:Genetic Vectors; D008969:Molecular Sequence Data; D010957:Plasmids / Q000235:genetics; D011938:Rec A Recombinases / Q000235:genetics; D011995:Recombination, Genetic; D012091:Repetitive Sequences, Nucleic Acid; D017384:Sequence Deletion; D013305:Streptomyces griseus / Q000235:genetics
chemical_list: D004269:DNA, Bacterial; D011938:Rec A Recombinases