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  • Title: [Structural-functional organization of R-plasmid pBS222 with a broad range of bacterial hosts].
    Author: Polevoda BV, Tsoĭ TV, Boronin AM.
    Journal: Mol Gen Mikrobiol Virusol; 1986 Dec; (12):3-10. PubMed ID: 3027554.
    Abstract:
    The broad host-range plasmid pBS222 is compatible with broad host-range plasmids of all known incompatibility groups and codes for tetracycline resistance. pBS222 is efficiently mobilized by Inc P-1 plasmid RP4 and is also capable of conjugal transfer with low efficiency to different gramnegative microorganisms. The size of the plasmid (17.2 Kb) has been determined and its physical map has been constructed. The plasmid harbours the unique sites for restriction endonucleases BglII, HindIII, HpaI, KpnI, SmaI and XbaI cleawage. The plasmid derivatives pBS352-pBS355 have been obtained that carry kan- and cam-determinants in addition to tet-gene. Plasmid pBS355 has been used to clone EcoRI-fragments of phage lambda DNA. The plasmid pBS222 regions essential for replication and maintenance have been localized by DNA hybridization analysis of its mini-derivatives pBS356 and 357. pBS222 is a convenient model for investigations of the plasmid replication and maintenance mechanisms in different bacterial hosts as well as for the construction of broad host-range vectors.
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