多种类型的指蛋白FOG作为转录因子GATA-1的辅因子,在红细胞和大核细胞分化过程中起作用
A P Tsang1, J E Visvader, C A Turner
1Children's Hospital and Dana-Farber Cancer Institute, Department of Pediatrics, Harvard Medical School, Boston, Massachusetts 02115, USA.
Cell
|July 11, 1997
概括
朋友的GATA-1 (FOG) 蛋白与GATA-1相互作用,这是一个关键的造血转录因子. 这种相互作用对红色素和巨核细胞细胞的发育和分化至关重要.
科学领域:
- 分子生物学分子生物学
- 血液形成 血液形成 血液形成
- 转录因子法规转录因子法规
背景情况:
- GATA-1 是一种关键的造血转录因子,对红状腺和巨核细胞系的发展至关重要.
- 了解GATA-1的调节网络对于理解血细胞形成至关重要.
研究的目的:
- 确定与GATA-1相互作用的新型蛋白质.
- 阐明交互伙伴在造血体分化中的功能性作用.
主要方法:
- 使用GATA-1的DNA结合域进行酵母双杂交系统选.
- 在胚胎发育和特定细胞类型的同时表达分析.
- 转录激活测定和细胞分化研究.
主要成果:
- 鉴定了一种新的指蛋白,Friend of GATA-1 (FOG),可以结合GATA-1.
- FOG结合取决于GATA-1氨基 (N) 指的作用.
- FOG和GATA-1协同激活转录,并在红状腺和巨核细胞分化中合作.
结论:
- 在造血发育过程中,FOG作为GATA-1的关键辅因子起作用.
- 这种GATA-1/FOG相互作用为通过GATA因子进行细胞类型特异性基因调节提供了一个模型.
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