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A 23Na and 31P NMR investigation of the binding of Ni2+ to Na-DNA

✍ Scribed by Mariano Casu; Adolfo Lai; Cristina Meloni; Giuseppe Saba

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
319 KB
Volume
137
Category
Article
ISSN
0009-2614

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✦ Synopsis

A "Na and "P NMR study of the Na-DNA and Na-DNA-Ni systems in aqueous solution has been undertaken. Analysis of the relaxation rates provides evidence that Ni'+ displaces Nat ions from the condensation layer of Na-DNA. Furthermore, it was found that Ni'+ binds specifically to the DNA phosphate to some extent and that multiple chemical equilibria are involved in the interactions.

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