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酵母双杂交筛选人乳腺cDNA文库中与Gankyrin相互作用的蛋白
引用本文:顾跃西,梁冰,满江红,李慧艳,李爱玲,张学敏,周涛. 酵母双杂交筛选人乳腺cDNA文库中与Gankyrin相互作用的蛋白[J]. 生物技术通讯, 2009, 20(2): 177-179,186. DOI: 10.3969/j.issn.1009-0002.2009.02.008
作者姓名:顾跃西  梁冰  满江红  李慧艳  李爱玲  张学敏  周涛
作者单位:国家生物医学分析中心,北京,100850
摘    要:目的:应用酵母双杂交技术,筛选与Gankyrin有相互作用的蛋白质。方法:应用酵母双杂交系统,以Gankyrin基因全长为诱饵,在人乳腺cDNA文库中筛选能与Gankyrin相互作用的蛋白质,并运用营养缺陷型培养基和X-α-Gal等实验提供的信息,筛除假阳性克隆。结果:以Gankyrin为诱饵筛选出了5个阳性克隆,对其中一个蛋白质RhoGDI2与Gankyrin进行了免疫共沉淀与GSTpull-down实验验证,证实了它们的相互作用。结论:Gankyrin能与RhoGDI2发生相互作用,在此基础上,可以开展Gankyrin调控肿瘤发生机制的研究。

关 键 词:Gankyrin  酵母双杂交  RhoGDI2  免疫共沉淀  GSTpull-down

Screening of Proteins Interacting with Gankyrin by Yeast Two-Hybrid in Human Breast cDNA Library
GU Yue-Xi,LIANG Bing,MAN Jiang-Hong,LI Hui-Yan,LI Ai-Ling,ZHANG Xue-Min,ZHOU Tao. Screening of Proteins Interacting with Gankyrin by Yeast Two-Hybrid in Human Breast cDNA Library[J]. Letters in Biotechnology, 2009, 20(2): 177-179,186. DOI: 10.3969/j.issn.1009-0002.2009.02.008
Authors:GU Yue-Xi  LIANG Bing  MAN Jiang-Hong  LI Hui-Yan  LI Ai-Ling  ZHANG Xue-Min  ZHOU Tao
Affiliation:( National Center of Biomedical Analysis, Beijing 100850, China)
Abstract:Objective: To find proteins interacting with Gankyrin by using yeast two-hybrid. Methods: Yeast two-hybrid was applied to screen human breast cDNA library, and Gankyrin as the bait, respectivley. SD nutrient medium and X-αGal were used to exclude the false positive. Results: Five proteins were found to interact with Gankyrin, one of which, RhoGDI2, was confirmed the interaction by Co-IP and GST pull-down. Conclusion: Gankyrin can interact with RhoGDI2, and researches of the mechanisms of Gankyrin as a regulator of tumorigenesis can be carried out based on this interaction.
Keywords:Gankyrin  RhoGDI2  GST pull-down
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