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Updated: Sep 7, 2025

Determination of Protein-ligand Interactions Using Differential Scanning Fluorimetry
Published on: September 13, 2014
Analytical methods for obtaining binding parameters of drug-protein interactions: A review
Lijuan Wang1, Wenmei Zhang1, Yunlong Shao1
1Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing, 100124, PR China.
Abstract:
The study of drug-protein interactions can reveal the corresponding binding mechanisms, providing valuable information for the early phase drug development and development of new drugs. This article reviews the methods used for obtaining the binding parameters of drug-protein systems. The methods include equilibrium dialysis, high-performance affinity chromatography, capillary electrophoresis, spectroscopy, calorimetry, competition and displacement, mass spectrometry, fluorescence resonance energy transfer, and thermal stability shift analysis. Relevant parameters include the association constant, number of binding sites, thermodynamic properties, binding force types, binding site types, binding distances, changes in protein conformation, and changes in protein stability. In addition, the review also summarizes the principles, advantages, and limitations of each method in detail. The comparison of parameter information can not only guide method selection but also provide valuable reference information for in-depth exploration of drug-protein interaction mechanisms.
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