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High-throughput Purification of Affinity-tagged Recombinant Proteins
Published on: August 26, 2012
大虫转录因子IID最大的子单元指导组装含有TBP的复合物和一个协作激活剂
R O Weinzierl1, B D Dynlacht, R Tjian
1Howard Hughes Medical Institute, Department of Molecular and Cell Biology, University of California, Berkeley 94720.
Nature
|April 8, 1993
概括
研究人员克隆了Drosophila TAFII250并组装了一个部分的TFIID复合体. 这种复合体含有TBP,TAFII110和TAFII250,支持Sp1激活,并揭示了关键的分子相互作用.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物化学 生物化学
背景情况:
- TFIID复合体对于基因转录至关重要,通过调节器调节激活.
- 它包括TATA结合蛋白 (TBP) 和TATA相关因子 (TAF).
研究的目的:
- 克隆Drosophila TAFII250并描述其在TFIID复合体中的作用.
- 研究TBP,TAFII110和TAFII250.0之间的相互作用.
主要方法:
- 克隆Drosophila TAFII250.0.250.克隆Drosophila TAFII250.250.克隆Drosophila TAFII250.250.克隆Drosophila TAFII250.250.克隆Drosophila TAFII250.250.克隆Drosophila TAFII250.
- 一个重组的部分TFIID复合物的组装 (TBP,TAFII110,TAFII250 C-终端域).
- 对于Sp1激活的功能性测试.
主要成果:
- 成功克隆Drosophila TAFII250.0.250.成功克隆DrosophilaTAFII250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.
- 组装一个支持Sp1激活的功能三重复合体.
- 确定TAFII250,TBP和TAFII110.0之间的特定相互作用.
结论:
- 克隆的Drosophila TAFII250是TFIID复合体的一个功能组成部分.
- 部分综合体提供了关于TFIID组装和功能的见解.
- 在TFIID复合体内的特定相互作用对转录调节至关重要.
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