The thermodynamic signature of ligand binding to histone deacetylase-like amidohydrolases is most sensitive to the flexibility in the L2-loop lining the active site pocket.
Meyners, C., Kramer, A., Yildiz, O., Meyer-Almes, F.J.(2017) Biochim Biophys Acta 1861: 1855-1863
- PubMed: 28389333 
- DOI: 10.1016/j.bbagen.2017.04.001
- Primary Citation of Related Structures:  
5G17, 5G1A, 5G1B - PubMed Abstract: 
The analysis of the thermodynamic driving forces of ligand-protein binding has been suggested to be a key component for the selection and optimization of active compounds into drug candidates. The binding enthalpy as deduced from isothermal titration calorimetry (ITC) is usually interpreted assuming single-step binding of a ligand to one conformation of the target protein ...