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DETERMINATION OF BINDING ENTHALPY VALUE AT COMPLEX-FORMATION OF LIGAND WITH DNA

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Submitted: 2025-03-10; Published: 2016-07-01
CC BY-NC 4.0 This work is licensed under Creative Commons Attribution–NonCommercial International License (CC BY-NC 4.0).

Abstract

The value of binding enthalpy change (ΔH) due to DNA–ligand complexformation has been determined by Van’t–Hoff mode having dependence of binding constant (K) on the reverse value of absolute temperature. Calculations that were carried out for DNA–ethidium bromide and DNA–mitoxantrone complexes showed, that if ΔH is determined from the values of K at two different temperatures, the calculated value of ΔH in the error frame coincides with its experimental value.

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