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  • Title: Illegitimate recombination in Bacillus subtilis: nucleotide sequences at recombinant DNA junctions.
    Author: Bashkirov VI, Khasanov FK, Prozorov AA.
    Journal: Mol Gen Genet; 1987 Dec; 210(3):578-80. PubMed ID: 3123895.
    Abstract:
    The illegitimate integration of plasmid pGG20 (the hybrid between Staphylococcus aureus plasmid pE194 and Escherichia coli plasmid pBR322) into the Bacillus subtilis chromosome was studied. It was found that nucleotide sequences of both parental plasmids could be involved in this process. The recombinant DNA junctions between plasmid pGG20 and the chromosome were cloned and their nucleotide sequences were determined. The site of recombination located on the pBR322 moiety carried a short region (8 bp) homologous with the site on the chromosome. The nucleotide sequences of the pE194 recombination sites did not share homology with chromosomal sequences involved in the integration process. Two different pathways of illegitimate recombination in B. subtilis are suggested.
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