title: Specificity of insertion of IS91, an insertion sequence present in alpha-haemolysin plasmids of Escherichia coli.
abstract: We have determined the DNA sequences of eight different insertions of IS91 in a specifically engineered recipient plasmid of known DNA sequence (pSU300). The sequences at the termini of IS91 are 5'-CGAGTAGG...CCTATCGAT. IS91 inserts specifically 5' to either one of the tetranucleotides 5'-GAAC or 5'-CAAG, and always in the same relative orientation with respect to the sequence of the target. Except in one special case, no duplications of the recipient DNA were produced at the site of insertion.
authors.affiliation: Departamento de Biología Molecular, Universidad de Cantabria, Santander, Spain.
authors.forename: M V
authors.initials: MV
authors.lastname: Mendiola
authors.forename: F
authors.initials: F
authors.lastname: de la Cruz
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics*; D001483:Base Sequence; D003001:Cloning, Molecular; D004251:DNA Transposable Elements; D004926:Escherichia coli / Q000235:genetics*; D029968:Escherichia coli Proteins; D006459:Hemolysin Factors; D006460:Hemolysin Proteins / Q000235:genetics*; D008969:Molecular Sequence Data; D010957:Plasmids; D015183:Restriction Mapping
chemical_list: D001426:Bacterial Proteins; D004251:DNA Transposable Elements; D029968:Escherichia coli Proteins; D006460:Hemolysin Proteins; C036507:Hlya protein, E coli