Abstract
The association constant of a well-known streptavidin-biotin binding has only been inferred from separately measured kinetic parameters. In a single experiment, we obtained Ka 1 × 1012 M-1 by using a streptavidin-binding aptamer and ligand-displacement isothermal titration calorimetry. This study explores the challenges of determining thermodynamic parameters and the derived equilibrium binding affinity of tight ligand-receptor binding.
Original language | English |
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Pages (from-to) | 125-128 |
Number of pages | 4 |
Journal | Journal of Molecular Recognition |
Volume | 28 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2015 |
Keywords
- Affinity constant measurement
- Ligand-displacement isothermal titration calorimetry
- Streptavidin-biotin binding
- Thermodynamic parameters
ASJC Scopus subject areas
- Molecular Biology
- Structural Biology