A high-throughput solid-phase microplate protein-binding assay to investigate interactions between myofilament proteins.

A high-throughput solid-phase microplate protein-binding assay to investigate interactions between myofilament proteins.
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DOI:
10.1155/2011/421701
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发表时间:
2011
影响因子:
--
通讯作者:
Jin JP
Jin JP
中科院分区:
其他
文献类型:
--
作者:
Biesiadecki BJ;Jin JP

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为了了解肌肉调节蛋白亚型、突变和翻译后修饰的结构-功能关系,有必要在蛋白-蛋白相互作用水平上探索功能效应。评估这种蛋白质-蛋白质相互作用的传统方法是费力的,需要大量的纯化蛋白质,而许多当前的方法需要昂贵和专门的设备或修改蛋白质,这可能会影响它们的相互作用。为了解决这些问题,近年来我们开发了一种基于微孔板的固相蛋白结合检测方法。该方法在生理条件下评估特定的蛋白质-蛋白质相互作用,使用相对少量的蛋白质,不需要蛋白质修饰,也不需要专门的仪器。在这里,我们提出了详细的方法,固相蛋白结合分析的例子,我们已经成功地应用于量化肌丝调节蛋白的相互作用。我们进一步提出了优化分析条件的考虑因素及其在其他蛋白质-蛋白质相互作用研究中的更广泛应用。
To understand the structure-function relationship of muscle-regulatory-protein isoforms, mutations, and posttranslational modifications, it is necessary to probe functional effects at the level of the protein-protein interaction. Traditional methodologies assessing such protein-protein interactions are laborious and require significant amounts of purified protein, while many current methodologies require costly and specialized equipment or modification of the proteins, which may affect their interaction. To address these issues, we developed a novel method of microplate-based solid-phase protein-binding assay over the recent years. This method assesses specific protein-protein interactions at physiological conditions, utilizes relatively small amounts of protein, is free of protein modification, and does not require specialized instrumentation. Here we present detailed methodology for the solid-phase protein-binding assay with examples that we have successfully applied to quantify interactions of myofilament-regulatory proteins. We further provide considerations for optimization of the assay conditions and its broader application in studies of other protein-protein interactions.
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