Differential Scanning Fluorimetry (DSF) Detection Service

It is most widely applied for rapid evaluation of protein stability, assisting clients in judging whether proteins are well-folded and qualified for downstream experiments. In the early R&D phase or protein process optimization stage, DSF enables screening of optimal buffer formulations, salt concentrations, pH values and additives. It also supports comparative analysis of quality differences between distinct protein constructs and production batches. As a highly efficient pre-screening tool, DSF meets the requirements of structural research, cryopreservation, transportation and long-term protein storage.

Overall assay repeatability is generally favorable, provided that sample status remains stable and operating conditions are consistent. Common factors compromising repeatability include deviations in protein concentration, inconsistent buffer compositions, repeated freeze-thaw cycles, trace impurities, and variable protein aggregation levels. We routinely adopt standardized loading protocols, uniform buffer systems and replicate wells to improve data consistency, enabling reliable comparison of thermal stability across different batches and protein constructs for clients.

This is not necessarily the case. An unchanged (Tm) may mean no ligand binding, but it can also indicate that binding takes place yet induces negligible shifts in thermal stability, or the ligand binding site does not interfere with the overall protein unfolding process. Another possibility is insufficient ligand solubility or concentration, resulting in a low fraction of bound protein.DSF is generally recommended only for preliminary screening and trend analysis. If definitive conclusions about molecular binding are required for a project, complementary interaction assays such as MST, SPR or BLI are suggested for further verification.

Yes, it can. In most cases, ligand binding alters protein stability and triggers a shift in melting temperature（ΔTm）. Accordingly, DSF is widely adopted for small-molecule screening, fragment screening and preliminary binding validation, and excels at rapid comparative analysis and exploratory condition testing.It should be noted, however, that not all binding events produce obvious (Tm) shifts. DSF therefore functions primarily as a screening and trend-assessment tool. For critical research projects, complementary binding characterization techniques including MST, SPR and BLI are recommended to deliver definitive binding results.