Perspective: Structure determination of protein-ligand complexes at room temperature using X-ray diffraction approaches.

Perspective: Structure determination of protein-ligand complexes at room temperature using X-ray diffraction approaches.
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透视图:使用X射线衍射方法在室温下蛋白质配体复合物的结构测定。

DOI:
10.3389/fmolb.2023.1113762
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发表时间:
2023
影响因子:
5
通讯作者:
--
中科院分区:
生物学3区
文献类型:
--
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大分子蛋白质和小分子配体之间的相互作用是细胞功能的重要组成部分。这样的配体可以包括酶底物、参与细胞信号传导的分子或药物。与用于评估配体与蛋白质结合的热力学和动力学性质的生物物理技术一起,需要确定使蛋白质和配体之间的原子水平相互作用能够直接可视化的高分辨率结构的方法。虽然这样的结构方法是很好地建立了高通量X射线晶体学常规用于制药部门,他们只提供了一个静态的复杂视图。X射线结构生物学方法的最新进展提供了几种新的可能性,可以在环境温度下而不是在低温条件下检查蛋白质-配体复合物,使瞬时结合位点和相互作用的特点,使用时间分辨的方法和联合收割机光谱测量从同一晶体的结构本身是确定的。这一观点回顾了这些领域的一些最新进展,并讨论了这些先进方法应用于改变我们对蛋白质-配体相互作用的理解的新可能性。
The interaction between macromolecular proteins and small molecule ligands is an essential component of cellular function. Such ligands may include enzyme substrates, molecules involved in cellular signalling or pharmaceutical drugs. Together with biophysical techniques used to assess the thermodynamic and kinetic properties of ligand binding to proteins, methodology to determine high-resolution structures that enable atomic level interactions between protein and ligand(s) to be directly visualised is required. Whilst such structural approaches are well established with high throughput X-ray crystallography routinely used in the pharmaceutical sector, they provide only a static view of the complex. Recent advances in X-ray structural biology methods offer several new possibilities that can examine protein-ligand complexes at ambient temperature rather than under cryogenic conditions, enable transient binding sites and interactions to be characterised using time-resolved approaches and combine spectroscopic measurements from the same crystal that the structures themselves are determined. This Perspective reviews several recent developments in these areas and discusses new possibilities for applications of these advanced methodologies to transform our understanding of protein-ligand interactions.
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