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A DEBYE-HUCKEL THEORY FOR ELECTROSTATIC INTERACTIONS IN PROTEINS

机译:蛋白质中静电相互作用的Debye-Huckel理论

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The site-site Ornstein-Zernike equation with a simple mean spherical closure is used to study electrostatic interactions of proteins. Using a Debye-Huckel approximation for the correlation functions of the bulk electrolyte and a simple basis expansion for the protein-salt direct correlation functions, we obtain a very simple variational expression for the electrostatic component of the excess chemical potential of a protein in an electrolyte solution. The predictions of the theory are tested on a model of the protein calbindin Dg,. Our calculations for calcium binding affinities and protein acidity constants are found to be in excellent agreement with the results of computer simulations. (C) 1996 American Institute of Physics. [References: 12]
机译:具有简单均值球形闭合的现场Ornstein-Zernike方程用于研究蛋白质的静电相互作用。使用Debye-Huckel近似来计算本体电解质的相关函数,并使用简单的基础展开来用于蛋白质-盐直接相关函数,我们获得了电解质中蛋白质过量化学势的静电分量的非常简单的变分表达式解。该理论的预测是在蛋白质钙结合蛋白Dg的模型上测试的。我们对钙结合亲和力和蛋白质酸度常数的计算与计算机模拟的结果非常吻合。 (C)1996年美国物理研究所。 [参考:12]

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