Dissecting the Hydrophobic Effect on the Molecular Level: The Role of Water, Enthalpy, and Entropy in Ligand Binding to Thermolysin
作者:Adam Biela、Nader N. Nasief、Michael Betz、Andreas Heine、David Hangauer、Gerhard Klebe
DOI:10.1002/anie.201208561
日期:2013.2.4
The hydrophobic effect is associated with the successive replacement of water molecules in the binding site of a protein by hydrophobic groups of the ligand. Although the hydrophobic effect is assumed to be entropy‐driven, large changes in enthalpy and entropy are observed with the model system thermolysin. Structural changes in the binding features of the water molecules ultimately determine the thermodynamics
疏水作用与配体的疏水基团连续替换蛋白质结合位点中的水分子有关。尽管疏水作用被认为是由熵驱动的,但是在模型系统Thermosin中,可以观察到焓和熵的大变化。水分子结合特征的结构变化最终决定了疏水作用的热力学。