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COOMASSIE Brilliant Blue G-250 , J.T.Baker ®

COOMASSIE Brilliant Blue G-250,J.T.Baker

Company: VWR
Catalog#: JTF789-3
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An in vitro Transcription/translation System for Detection of Protein Interaction
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Date:
2016-05-05
[Abstract]  Studying protein-protein interaction is crucial to understand the fundamental processes of molecular biology. High-throughput screening, such as immunoprecipitation followed by proteomic analysis, allows for the identification of numerous candidate partners that might interact with a selected protein. However, experimental validation of protein-protein interaction requires conventional cloning and recombinant protein expression/purification, which are complicated and labor-intensive techniques. Here, we demonstrate an efficient experimental pipeline for verifying protein-protein interactions between a bait protein using the example of Odontoglossum ringspot virus (ORSV) capsid protein (CP) and the host CP-binding protein. These candidate CP-binding proteins were identified ... [摘要]  研究蛋白质 - 蛋白质相互作用对于理解分子生物学的基本过程是至关重要的。高通量筛选,如免疫沉淀,然后蛋白质组分析,允许鉴定可能与选择的蛋白质相互作用的许多候选伙伴。然而,蛋白质 - 蛋白质相互作用的实验验证需要常规克隆和重组蛋白表达/纯化,这是复杂和劳动密集型技术。在这里,我们演示了一个有效的实验管道,用于验证使用Odontoglossum环斑病毒(ORSV)衣壳蛋白(CP)和宿主CP结合蛋白的例子的诱饵蛋白之间的蛋白质 - 蛋白质相互作用。这些候选CP结合蛋白通过高通量蛋白质组学和转录组学方法进行鉴定。使用TOPO克隆策略,将每个候选基因克隆到表达载体中,用于在体外转录/翻译系统的单个步骤中表达His标记的重组蛋白。这种表达的His标记的候选物可以在共免疫沉淀(co-IP)测定中用作CP诱饵蛋白的猎物,以验证它们的物理相互作用。不需要传统的蛋白质表达和纯化,该管道简化了验证过程,并为高通量蛋白质 - 蛋白质相互作用研究提供了解决方案。

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