[The influence of Bordetella pertussis bvgAS operon on formation and resolution of plasmid-chromosome cointegrates in Escherichia coli K12 mutants with damages in common components of the phosphoenolpyruvate:sugar phosphotransferase system].

The plasmids containing the genetically marked variants of Bordetela pertussi transposon TnBP were synthesized on the base of the plasmid with thermosensitive replication. The integration frequency of these plasmids into the E.coli K12 chromosome at non-permissive temperature (42 degrees C) was determined. It was found that the frequency of forming of RSBP-induced plasmid-chromosome cointegrated in bacteria E.coli K12 deficient in HPr or Enzyme I of the phosphoenolpyruvate:sugar phosphotransferase system was decreased. The bvgAS operon from B.pertussis in trans-position restores the ability of mutant E.coli K12 to form and resolve.