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  • Title: Identification of a Tn5 determinant conferring resistance to phleomycins, bleomycins, and tallysomycins.
    Author: Collis CM, Hall RM.
    Journal: Plasmid; 1985 Sep; 14(2):143-51. PubMed ID: 2415995.
    Abstract:
    Tn5 conferred resistance to the related antibiotics, phleomycins, bleomycins, and tallysomycins in Escherichia coli and Salmonella typhimurium. For pure phleomycins the level of resistance was influenced by the structure of the terminal basic group. Deletion derivatives of a pBR322::Tn5 plasmid were used to show that the phleomycin resistance determinant is located between the previously identified neomycin and streptomycin resistance determinants. The pattern of expression of phleomycin and neomycin resistance in the deletion derivatives suggests that the phleomycin resistance gene is transcribed from the same promoter, PL, which is essential for expression of neomycin and streptomycin resistance. The location of the phleomycin resistance determinant correlates with the location of an open reading frame in the Tn5 sequence, which codes for a polypeptide of 126 amino acids.
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