Peptide Assemblies in Living Cells. Methods for Detecting Protein-Protein Interactions†

Peptide Assemblies in Living Cells. Methods for Detecting Protein-Protein Interactions†
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活细胞中的肽组装体。检测蛋白质-蛋白质相互作用的方法†

DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
Y. Umezawa
Y. Umezawa
中科院分区:
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文献类型:
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作者:
T. Ozawa;Y. Umezawa

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在哺乳动物细胞中,蛋白质-蛋白质相互作用构成调节信号通路活性的重要调节步骤。为了理解活细胞中相互作用的复杂机制,化学交联或免疫沉淀已被广泛使用。然而,这样的生物化学方法需要细胞破碎,并且不一定保持所有相互作用的完整。近年来,已经开发了一些优雅的方法来理解相互作用。这些新方法的一个共同优点是直接观察活细胞中的相互作用,而不需要破坏细胞。本文介绍了这些方法的最新进展,包括我们最近的工作基于蛋白质剪接检测蛋白质-蛋白质相互作用在体内,并强调这些技术的一些潜在的应用。
In mammalian cells, protein-protein interactions constitute essential regulatory steps that modulate the activity of signaling pathways. To understand the complicated mechanisms of the interactions in living cells, chemical crosslinking or immunoprecipitation has extensively been used. However, such biochemical methods require cell disruption and do not necessarily preserve all interactions intact. In recent years, several elegant approaches have been developed towards understanding the interactions. A common advantage of these new approaches is direct observation of the interaction in living cells without the need for disrupting the cells. We describe herein recent advances of those methods including our recent works based on protein splicing for detecting protein-protein interactions in vivo and highlight some potential applications of these techniques.
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