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  • Title: [Quantity of exogenous linear DNA absorbed by E. coli cells treated with Ca2+ cations].
    Author: Bukrinskiĭ MI, Sabel'nikov AG.
    Journal: Biull Eksp Biol Med; 1981 May; 91(5):594-6. PubMed ID: 6266558.
    Abstract:
    The amount of linear chromosomal DNA entering Ca2+-treated Escherichia coli K 12 cells was estimated from the degree of degradation of exogenous DNA by intracellular nucleases. At least 40% of DNA adsorbed by the cells in the nucleaso-resistant form (45 MD/cell) was discovered to be as intracellular. No significant difference was found between single- and double-stranded DNA.
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