期刊
BIOPHYSICAL CHEMISTRY
卷 100, 期 1-3, 页码 367-395出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0301-4622(02)00293-4
关键词
energy functions; solvation; protein stability; denaturation
Statistical thermodynamics provides a powerful theoretical framework for analyzing, understanding and predicting the conformational properties of biomolecules. The central quantity is the potential of mean force or effective energy as a function of conformation, which consists of the intramolecular energy and the solvation free energy. The intramolecular energy can be reasonably described by molecular mechanics-type functions. While the solvation free energy is more difficult to model, useful results can be obtained with simple approximations. Such functions have been used to estimate the intramolecular energy contribution to protein stability and obtain insights into the origin of thermodynamic functions of protein folding, such as the heat capacity. With reasonable decompositions of the various energy terms, one can obtain meaningful values for the contribution of one type of interaction or one chemical group to stability. Future developments will allow the thermodynamic characterization of ever more complex biological processes. (C) 2002 Elsevier Science B.V. All rights reserved.
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