S A Kornilova

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DNA complexed with Mn2+ ions in films is studied at different relative humidities and ion contents ([Mn2+]/[P] = 0.4-1) by IR spectroscopy. It is shown that substantially more sorbed water molecules are necessary for the transition of DNA complexed with Mn2+ ions into the double helical conformation (preferentially B-form) that for macromolecules in the(More)
The interaction of Cu2+, Mn2+ and Ca2+ ions with DNA in aqueous and water-ethanol solutions at different metal ion concentrations was studied by IR-spectroscopy. At sufficiently high DNA concentrations, DNA interaction with Cu2+, Ca2+ and Mn2+ ions results in compacting of DNA in the aqueous solutions. This process shows a very high cooperativity. In the(More)
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