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  • Title: [Cloning the genetic determinant of alpha-hemolysin and obtaining a series of insertional mutations in this determinant by the transposon Tn1000].
    Author: Elizbarashvili DA, Baĭmukhanova SK, Egorov IA, Tarasov VA.
    Journal: Genetika; 1989 Feb; 25(2):207-13. PubMed ID: 2544485.
    Abstract:
    Functionally active genetic determinant of alpha-hemolysin was cloned. Hemolytic plasmid pHly195 was used as a donor of the determinant and pBR322 plasmid served as recipient. Cloning was done with a help of HindIII restriction endonuclease. The recombinant plasmid obtained represents pBR322 plasmid with the built-in fragment of 7.4 kb containing genes of functionally active determinant of alpha-hemolysin. Restriction map was constructed using HindIII, EcoRI, BamHI and SalI restriction endonucleases. Insertional mutagenesis was carried out with the help of the Tn1000 transposon. Plasmid DNAs were isolated from insertional mutants of Hly- phenotype and treated with EcoRI, SalI and BamHI. On the basis of the sizes of restriction fragments of the mutant plasmid DNAs localization and orientation of insertions of Tn1000 into the cloned determinant of alpha-hemolysin were determined.
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