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A method for calculating the curves of DNA transition from linear to condensed state upon binding of condensing ligands has been developed. The character of the transition and ligand concentration necessary for condensation have been shown to be governed by the length of DNA molecule, energy and stoichiometry parameters of the DNA–ligand complex (equilibrium constant between linear and condensed form...
The influence on the molecular melting of DNA of ligands undergoing temperature conformational transitions is analysed theoretically. Formulae are obtained for calculating the melting curve of DNA in such a complex. They are used to investigate the stability of the double helix and also to study the influence on the conformational transitions of the ligands of their binding to helical and molten...
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