Revisiting macromolecular hydration with HullRadSAS.
Revisiting macromolecular hydration with HullRadSAS.
复制标题
使用 HullRadSAS 重新审视大分子水合。
DOI：
10.1007/s00249-022-01627-8
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Fleming,KarenG
中科院分区：
文献类型：
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作者：
Fleming,PatrickJ;Correia,JohnJ;Fleming,KarenG
生物大分子的水合作用对它们的稳定性和功能具有重要意义。历史上，已经尝试使用在窄范围的值上的单个参数来描述大分子水合的程度。在这里，我们描述了一种方法来计算两种类型的水化：表面壳水和夹带水。考虑这两种类型的水合作用有助于解释流体力学中的“水合作用问题”。这两种类型的水合作用的组合允许流体动力学体积和相关的大分子性质的准确计算，如沉降和扩散系数，特性粘度，和浓度依赖的非理想性与沉降速度实验确定。
Hydration of biological macromolecules is important for their stability and function. Historically, attempts have been made to describe the degree of macromolecular hydration using a single parameter over a narrow range of values. Here, we describe a method to calculate two types of hydration: surface shell water and entrained water. A consideration of these two types of hydration helps to explain the “hydration problem” in hydrodynamics. The combination of these two types of hydration allows accurate calculation of hydrodynamic volume and related macromolecular properties such as sedimentation and diffusion coefficients, intrinsic viscosities, and the concentration-dependent non-ideality identified with sedimentation velocity experiments.