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  • Title: [Properties of transposon Tn2555 carrying the genes for sucrose utilization].
    Author: Doroshenko VG, Livshits VA.
    Journal: Mol Gen Mikrobiol Virusol; 1987 Jun; (6):23-8. PubMed ID: 3041202.
    Abstract:
    Tn2555, a new transposon coding for genes of sucrose utilization was studied. Tn2555 was shown to integrate into the plasmids RP4 and R6K, phage P1CmClr100 and Escherichia coli K12 chromosome. Tn2555 frequency of transposition to RP4 and R6K DNA is (2-5) X 10(-7) in Rec+-strain, (3-6) X 10(-8) in Rec--strain. Tn2555 integration site in phage P1CmClr100 Sac+-derivative studied has been localised within the C-segment of P1 DNA. In three independent cases of Tn2555 transposition to the chromosome the transposon was found to be integrated in the region between 29 and 32 min of Escherichia coli K12 linkage map. The restriction endonuclease analysis of seven independent isolates of RP4::Tn2555 has shown the grouping of Tn2555 integration sites in the Tn1 region of RP4. Frequent rearrangements occurring within Tn2555 have been revealed by the analysis. However, an invertible DNA segment of about 6-7 kb was preserved in all transposon structures.
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