Isothermal Titration Calorimetry

  • Edwin A. Lewis
  • Kenneth P. Murphy
Part of the Methods in Molecular Biology™ book series (MIMB, volume 305)


Isothermal titration calorimetry is an ideal technique for measuring biological binding interactions. It does not rely on the presence of chromophores or fluorophores, nor does it require an enzymatic assay. Because the technique relies only on the detection of a heat effect upon binding, it can be used to measure the binding constant, K, the enthalpy of binding, ΔH° and the stoichiometry, or number of binding sites, n. This chapter describes instrumentation, experimental design, and the theoretical underpinnings necessary to run and analyze a calorimetric binding experiment.

Key Words

Binding thermodynamics proton linkage enthalpy heat capacity data analysis 


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Copyright information

© Humana Press Inc., Totowa, NJ 2005

Authors and Affiliations

  • Edwin A. Lewis
    • 1
  • Kenneth P. Murphy
    • 2
  1. 1.Department of Chemistry and BiochemistryNorthern Arizona UniversityFlagstaff
  2. 2.Department of BiochemistryUniversity of IowaIowa City

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