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首页> 外文期刊>Molecular & cellular proteomics: MCP >Sampling protein form and function with the atomic force microscope.
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Sampling protein form and function with the atomic force microscope.

机译:用原子力显微镜对蛋白质的形态和功能进行采样。

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摘要

To study the structure, function, and interactions of proteins, a plethora of techniques is available. Many techniques sample such parameters in non-physiological environments (e.g. in air, ice, or vacuum). Atomic force microscopy (AFM), however, is a powerful biophysical technique that can probe these parameters under physiological buffer conditions. With the atomic force microscope operating under such conditions, it is possible to obtain images of biological structures without requiring labeling and to follow dynamic processes in real time. Furthermore, by operating in force spectroscopy mode, it can probe intramolecular interactions and binding strengths. In structural biology, it has proven its ability to image proteins and protein conformational changes at submolecular resolution, and in proteomics, it is developing as a tool to map surface proteomes and to study protein function by force spectroscopy methods. The power of AFM to combine studies of protein form and protein function enables bridging various research fields to come to a comprehensive, molecular level picture of biological processes. We review the use of AFM imaging and force spectroscopy techniques and discuss the major advances of these experiments in further understanding form and function of proteins at the nanoscale in physiologically relevant environments.
机译:为了研究蛋白质的结构,功能和相互作用,可以使用多种技术。许多技术在非生理环境(例如,空气,冰或真空中)中对此类参数进行采样。但是,原子力显微镜(AFM)是一种强大的生物物理技术,可以在生理缓冲条件下探测这些参数。通过在这种条件下运行的原子力显微镜,无需标记即可获得生物结构的图像,并且可以实时跟踪动态过程。此外,通过以力谱模式操作,它可以探测分子内的相互作用和结合强度。在结构生物学中,它已被证明具有在亚分子分辨率下成像蛋白质和蛋白质构象变化的能力,在蛋白质组学中,它正在发展为绘制表面蛋白质组图谱和通过力谱法研究蛋白质功能的工具。原子力显微镜将蛋白质形式和蛋白质功能研究相结合的强大功能,使各个研究领域之间的桥梁得以融合,从而形成了生物学过程的全面,分子水平的图像。我们审查了原子力显微镜成像和力谱技术的使用,并讨论了这些实验的主要进展,以进一步了解生理相关环境中纳米级蛋白质的形式和功能。

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