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Loss of transforming activity of plasmid DNA (pBR322) in E. coli caused by singlet molecular oxygen

โœ Scribed by Heribert Wefers; Dietrich Schulte-Frohlinde; Helmut Sies


Book ID
115919900
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
318 KB
Volume
211
Category
Article
ISSN
0014-5793

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Protection of plasmid pBR322 DNA by flav
โœ Thomas P.A. Devasagayam; Mayilvahanan Subramanian; B.B. Singh; R. Ramanathan; Na ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 672 KB

Flavonoids, the dominant colouring pigments of plants, as well as the related polyphenol tannic acid significantly inhibit single-strand breaks in plasmid pBR322 DNA induced by singlet molecular oxygen ((1)O2). This reactive species of oxygen was generated in an aqueous buffer system by the thermal