FIG. 2.

Physical and genetic maps of plasmid pUHAB and its deletion derivatives. The white boxes represent DNA fragments from plasmid pC51. The horizontal arrows indicate the direction of transcription. Abbreviations: Mcc⁺, synthesis of MccC51; Mcc⁻, absence of MccC51 synthesis; Mcc_p⁺, synthesis of MccC51p; Imm⁺, immunity to microcin; Imm⁻, absence of immunity to microcin; Imm⁺⁻, partial immunity to microcin; P _mcc, promoter of the MccC51 operon; mccA, mccB, mccC, mccD, mccE, genes involved in MccC51 production and immunity. Restriction sites: B, BamHI; Bg, BglII; Bp, Bsp1407I; Bs, Bsp119I; C, ClaI; E, EcoRI; H, HindIII; K, KpnI; P, PstI; S, SmaI; Sc, SacI.