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Thermal stability of DNA interacting with furazolidone and Cu(II) ions
Abstract:
Furazolidone, on complexing with DNA, led to its thermal stabilization. The increase in transition temperature of DNA (delta Tm) increased linearly with % A--T content. Increasing concentration of Cu(II) ions progressively lowered the transition temperature of DNA, but Cu(II) ions were not equally effective in lowering the transition temperature of furazolidone-DNA complex. When equimolar amounts of Cu(II) ions and furazolidone were used, the stabilisation effects of furazolidone prevailed over the destabilisation effect of Cu(II) ions.
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