Analysis Interactions of Ferulic Acid With Bovine Serum Albumin by Isothermal Titration Calorimetry (ITC) (CAT#: STEM-MB-2538-LGZ)

Introduction

Isothermal Titration Calorimetry (ITC) is an important method to study biothermodynamics and biokinetics. It can continuously and accurately monitor and record the calorimetry curve of a changing process by a highly sensitive and automatic microcalorimetry meter. It also provides thermodynamic and kinetic information. ITC can be used to measure the thermodynamic parameters of biomolecular interactions, including affinity (KA), enthalpy (ΔH), entropy (ΔS), and stoichiometry (n). The binding characteristics of ferulic acid (FA) with bovine serum albumin (BSA) can be investigated using isothermal titration calorimetry (ITC) techniques.

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Principle Applications Procedure Materials Notes Related Products

Principle

A reactant is placed in a temperature-controlled sample cell and coupled to the reference cell through a thermocouple loop. The sample cell and the reference cell are in the same external environment. A specific titration agent (selected as required by the test) is added to the sample cell quantitatively. The change in energy in response can be sensitively detected and triggered by a positive or negative feedback thermostat to keep the temperature constant.

Applications

For characterizing thermodynamic parameters of biomolecular interactions.

Procedure

1. Preparation before the experiment.
2. Add 40ul of ligand or small molecule protein solution to the titration syringe, 200ul of large molecule protein solution to the sample pool, and 200ul of distilled water to the reference pool.
3. Set Experimental Parameters in the interface.
4. In the set up interface, set the storage path of experimental data and experimental methods, as well as the current user.
5. Put the titration syringe into the sample pool and click Start to start the experiment. Display real-time images of the experiment on the Real Time Plot interface.

Materials

• Sample Type: protein 50 micrograms, small molecules 10mM/500ul, the higher the sample concentration is the better, protein peptides need to be sent at low temperature.

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