首页|Spectroscopic and theoretical evidences for the surface binding of voglibose drug with DNA
Spectroscopic and theoretical evidences for the surface binding of voglibose drug with DNA
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NSTL
Elsevier
Binding of voglibose (VOG), an alpha glucosidase inhibitor, with CT-DNA has been investigated using various spectroscopic techniques including UV-Vis, fluorescence and circular dichroism (CD) coupled with relative viscosity. Isothermal titration calorimetric studies have been used to calculate the thermodynamic parameters such as Delta H (0.0188 cal/mol), Delta S (63.3 cal/mol/K) and Delta G (-18.8 kcal/mol), which reveal that the binding is a spontaneous process and hydrophobic and H-bonding interactions play major roles in the binding process. Effect of ionic strength confirms the existence of hydrophobic interaction between VOG and CT-DNA. Competitive displacement assays with ethidium bromide (EB) and Hoechst 33258 suggest that VOG possibly binds on the surface of CT-DNA. Viscosity measurements also disclose that the binding could be mainly surface binding. Corroborating the experimental observations, metadynamics molecular simulation studies confirm that VOG binding on the surface of the DNA molecule through hydrophobic interactions and direct and water molecule mediated H-bonding. (C) 2022 Elsevier B.V. All rights reserved.
DNA bindingVogliboseThermodynamicsSimulationSpectroscopyCALF THYMUS DNAMOLECULAR DOCKING
Priyadharshini, R. Durga、Ponkarpagam, S.、Vennila, K. N.、Elango, Kuppanagounder P.
NSTL
Elsevier
