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Differential scanning fluorimetry (DSF) can be used to detect the binding of a small molecule ligand to a purified target protein. Upon binding with certain ligands, the protein can be stabilized from thermal denaturation. DSF uses a fluorescent dye and Real-Time PCR instrument to detect the unfolding process of proteins during thermal denaturation. The experiment can be set up and finished in 1 day once the purified protein is available.


Xiaohui Li, Chunhua Zhang. Using Differential Scanning Fluorimetry (DSF) to Detect Ligand Binding with Purified Protein. Methods in molecular biology (Clifton, N.J.). 2021;2213:183-186

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PMID: 33270203

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