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JoVE Journal
Biochemistry
通过将微流体与质量光度法相结合来分析微摩尔浓度下的蛋白质复合物形成
通过将微流体与质量光度法相结合来分析微摩尔浓度下的蛋白质复合物形成
JoVE Journal
Biochemistry
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JoVE Journal Biochemistry
Analysis of Protein Complex Formation at Micromolar Concentrations by Coupling Microfluidics with Mass Photometry

通过将微流体与质量光度法相结合来分析微摩尔浓度下的蛋白质复合物形成

Full Text
2,815 Views
06:39 min
January 26, 2024

DOI: 10.3791/65772-v

Myndert Claasen1, Zornitsa Kofinova1, Matteo Contino2, Weston B. Struwe3,4

1Refeyn Ltd., 2Adaptix Ltd., 3Physical and Theoretical Chemistry Laboratory, Department of Chemistry,University of Oxford, 4The Kavli Institute for Nanoscience Discovery,University of Oxford

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Please note that some of the translations on this page are AI generated. Click here for the English version.

该协议将质量光度法与新型微流体系统相结合,以研究低亲和力蛋白质 - 蛋白质相互作用。该方法基于溶液中高浓度复合物的快速稀释,从而实现低亲和力测量并扩大了质量光度法的适用性。

该协议展示了一种分析低亲和力蛋白质复合物的全新方法。它使研究人员能够检测和表征某些蛋白质相互作用,即使它们是微弱的或短暂的,这在以前通常是非常困难的,甚至是不可能的。蛋白质相互作用对细胞功能至关重要,但检测和测量它们可能具有挑战性。

质量光度法是量化蛋白质复合物形成的绝佳工具,但它对稀释样品有局限性。我们正在用MassFluidix来解决这个问题。我们正在解决的研究空白是科学家如何能够可靠地表征溶液中蛋白质之间的低亲和力相互作用。

我们方法的优点是,它允许您在溶液中寻找弱蛋白质相互作用,而无需标记或固定。因此,研究人员可以观察感兴趣的蛋白质以及它们如何相互作用,而不必担心它们会破坏他们正在观察的系统。

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