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arXiv 1602.07957q-bio.BM
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计算蛋白质中p $K_a$ s和$E_m$ s的连续静电学方法

Continuum Electrostatics Approaches to Calculating p$K_a$s and $E_m$s in Proteins

Marilyn R. Gunner, Nathan A. Baker

摘要:

蛋白质通过质子化和氧化还原反应以及通过结合带电配体来改变其电荷状态。这些反应的自由能主要由溶剂化能和静电能控制,并由蛋白质构象弛豫响应电离状态的变化进行调制。尽管计算这些相互作用的计算方法可以为预测蛋白质电荷状态提供非常强大的工具,但它们包括用户应该知道的几个关键近似值。本章讨论了预测电荷状态和理解其潜在的静电相互作用的流行计算方法的优点,缺点和近似。本章的目的是告知用户这些方法的应用和潜在的注意事项,以及未来的理论和计算研究的大纲方向。

英文摘要:

Proteins change their charge state through protonation and redox reactions as well as through binding charged ligands. The free energy of these reactions are dominated by solvation and electrostatic energies and modulated by protein conformational relaxation in response to the ionization state changes. Although computational methods for calculating these interactions can provide very powerful tools for predicting protein charge states, they include several critical approximations of which users should be aware. This chapter discusses the strengths, weaknesses, and approximations of popular computational methods for predicting charge states and understanding their underlying electrostatic interactions. The goal of this chapter is to inform users about applications and potential caveats of these methods as well as outline directions for future theoretical and computational research.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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