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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Analysis of a peptide hormone-receptor interaction in the yeast two-hybrid system
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Analysis of a peptide hormone-receptor interaction in the yeast two-hybrid system

机译:酵母双杂交系统中肽激素-受体相互作用的分析

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摘要

Interaction between a peptide hormone and extracellular domains of its receptor is a crucial step for initiation of hormone action. We have developed a modifica- tion of the yeast two-hybrid system to study this interaction and have used it to characterize the interaction of insulin-like growth factor 1 (IGF-1) with its receptor by using GAL4 transcriptional regulation with a β-galactosidase assay as readout. In this system, IGF-1 and proIGF-1 bound to the cysteine-rich domain, extracellular domain, or entire IGF-1 proreceptor. This interaction was specific.
机译:肽激素与其受体的胞外域之间的相互作用是引发激素作用的关键步骤。我们开发了一种酵母双杂交系统的修饰物,以研究这种相互作用,并通过使用GAL4转录调控和β-受体蛋白来表征胰岛素样生长因子1(IGF-1)与它的受体之间的相互作用。半乳糖苷酶测定法作为读数。在该系统中,IGF-1和proIGF-1与富含半胱氨酸的结构域,细胞外结构域或整个IGF-1受体结合。这种相互作用是特定的。

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