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NMR diffusion and relaxation study of drug-protein interaction.


In this work, NMR diffusion and relaxation measurements are applied to the study of the interaction between the anti-inflammatory drug salicylate and the human serum albumin (HSA) in solutions. The self-diffusion coefficients and the spin-lattice relaxation rates of salicylate are measured as a function of the concentration. The dissociation constant, Kd, for drug/HSA complexes and the number of binding sites, n, are evaluated.

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