在招募MAML协作激活剂到Notch转录复合体中的合作的结构基础
Yunsun Nam1, Piotr Sliz, Luyan Song
1Biological and Biomedical Sciences Graduate Program in the Division of Medical Sciences, Harvard Medical School, Boston, MA 02115, USA.
这项研究揭示了Notch转录激活复合物的晶体结构. 这种结构阐明了Notch信号如何精确地控制发育过程中的基因转录.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 结构生物学是结构生物学.
背景情况:
- 隙受体在发育过程中对细胞间的通信至关重要.
- 信号转导涉及形成一个复合体,激活目标基因转录.
研究的目的:
- 为了确定Notch转录激活复合物的晶体结构.
- 阐明调控Notch介导基因调节的分子相互作用.
主要方法:
- 使用X射线结晶学来获得结构.
- 该综合体包括人类Notch1 (ANK) 的基林域,CSL转录因子,DNA和Mastermind-like-1 (MAML-1).
主要成果:
- 晶体结构揭示了ANK和CSL如何形成一个槽,将MAML-1结合为螺旋结构.
- 这种复合材料的结合表面对于精确招募协活性剂至关重要.
结论:
- 这些发现为Notch:CSL复合体的调节组装提供了结构基础.
- 这种机制确保了对Notch目标基因的精确转录控制,这对发育过程至关重要.
更多相关视频
14:47Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry
Published on: May 17, 2016
07:03Pulldown Assay Coupled with Co-Expression in Bacteria Cells as a Time-Efficient Tool for Testing Challenging Protein-Protein Interactions
Published on: December 23, 2022
相关概念视频
Cooperative Binding of Transcription Regulators
Co-activators and Co-repressors
Notch Signaling Pathway
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
Cooperative Binding of Transcription Regulators
Co-activators and Co-repressors
Notch Signaling Pathway
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
