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  • Title: Isolation of catenated and replicating DNA molecules of colicin factor E1 from minicells.
    Author: Inselburg J, Fuke M.
    Journal: Proc Natl Acad Sci U S A; 1971 Nov; 68(11):2839-42. PubMed ID: 4941988.
    Abstract:
    Various catenated and replicating molecules of colicin E1 isolated from minicells have been identified in regions of neutral sucrose density gradients or cesium chloride-ethidium bromide density gradients. These colicin molecules have been found in those regions of the gradient where pulse-labeled DNA accumulates.
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