相关实验视频
Updated: Aug 8, 2026

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Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
通过EGF和干扰素-gamma诱导小鼠肝核中的铁酸化DNA结合蛋白
S Ruff-Jamison1, K Chen, S Cohen
1Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232.
概括
外皮生长因子 (EGF) 和干扰素- (IFN-) 通过激活IFN-激活因子 (GAF) 来触发核信号. 这些GAF蛋白与c-fos促进体结合,表明它们在EGF和IFN-gamma通路中的作用.
科学领域:
- 分子生物学分子生物学
- 细胞信号传输 细胞信号传输
- 生物化学 生物化学
背景情况:
- 表皮生长因子 (EGF) 和干扰素- (IFN-) 是关键的信号分子.
- 核转位和蛋白质酸化是关键的细胞过程.
- 该c-fos促进体参与基因调节.
研究的目的:
- 为了研究受EGF和IFN-gamma管理影响的核蛋白质.
- 为了识别由这些因素诱导的特定的氨酸酸化蛋白.
- 阐明这些蛋白质在核信号通路中的作用.
主要方法:
- 在小鼠体内注射EGF和IFN-gamma.
- 在肝核中分析氨酸酸化蛋白质.
- 凝转移测试以确定蛋白质-DNA结合相互作用.
主要成果:
- 在肝核中,EGF的使用诱导了三种铁酸化蛋白 (84,91,92 kDa).
- 在肝核中,IFN-gamma的使用诱导了两种铁酸化蛋白 (84,91 kDa).
- 84和91kDa的蛋白质被确定为IFN-激活因子 (GAF),并与c-fos促进体结合.
结论:
- 在EGF或IFN-gamma刺激后,GAF蛋白质被迅速化并转移到核中.
- GAF蛋白与c-fos促进体的sis诱导元素结合.
- GAF蛋白质在EGF和IFN-马通路的核信号传递中起着重要作用.
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