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- W2007103636 abstract "A new cyclen derivative N-1-naphthyl-[4-amino-5-oxo-5-(1,4,7,10-tetraazacyclododecan-1-yl)]valeramide and the copper (II) complex were synthesized and characterized. The copper (II) complex showed DNA cleavage ability without the existence of other additives. The pUC19 plasmid DNA was cleaved to linear form by 0.71 μM of complex under physiological conditions. β-Cyclodextrin was used to investigate the relationship of nuclease activity and DNA binding ability. The addition of β-cyclodextrin exhibited an unexpected ability to promote the cleavage of DNA. The role of the β-cyclodextrin in DNA cleavage process was studied by 1H NMR and fluorescence spectrum. According to the data of viscosity measurement, it was confirmed that the binding of complex with DNA should be a groove binding model. All the results suggested that the increasing of the DNA cleavage ability was attributed to the interaction between β-cyclodextrin and the naphthyl moieties. β-Cyclodextrin could include the naphthyl moieties and keep it from the minor/major groove of DNA and decreased the DNA binding ability, therefore, the copper (II) center was activated to generate more reactive oxygen species, which was responsible for DNA cleavage." @default.
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- W2007103636 date "2008-02-01" @default.
- W2007103636 modified "2023-09-24" @default.
- W2007103636 title "DNA cleavage by novel copper (II) complex and the role of β-cyclodextrin in promoting cleavage" @default.
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- W2007103636 doi "https://doi.org/10.1016/j.bmc.2007.10.088" @default.
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