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Original Article

Does the Enzymatic Conversion of DNA Single-strand Damage into Double-strand Breaks Contribute to Biological Inactivation of γ-irradiated Plasmid DNA

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Pages 167-171 | Received 27 Apr 1992, Accepted 08 Sep 1992, Published online: 03 Jul 2009
 

Abstract

Incubation of γ-irradiated plasmid DNA (pBR322) in a protein extract of E. coli CMK wild-type cells leads to the formation of double-strand breaks which contribute to biological inactivation by ⩾ 80%.

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