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  • Title: Properties of the relaxation complexes of supercoiled deoxyribonucleic acid and protein of the R plasmids R64, R28K, and R6K.
    Author: Kupersztoch-Portnoy YM, Miklos GL, Helinski DR.
    Journal: J Bacteriol; 1974 Oct; 120(1):545-8. PubMed ID: 4608091.
    Abstract:
    The presence of supercoiled deoxyribonucleic acid in the form of a relaxation complex is described for the antibiotic resistance plasmids R64, R28K, and R6K. The properties of these relaxation complexes indicate that they consist of a covalently closed circular deoxyribonucleic acid molecule associated with an activable, single strand-specific endonuclease.
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