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相关概念视频

Microtubule Associated Proteins (MAPs)01:42

Microtubule Associated Proteins (MAPs)

Microtubule function and architecture are regulated by an array of specialized proteins called microtubule-associated proteins or MAPs. These proteins are widespread across different organisms and have conserved protein motifs, like the multi-TOG domain for tubulin binding found in the CLASP family of MAPs. Some MAPs are lineage-specific based on their conserved domains. Their functions depend upon the cytoskeletal architecture and cell type they are located within. In-plant cells, a specific...

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相关实验视频

Updated: Jul 7, 2026

Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System
08:54

Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System

Published on: March 20, 2016

使用替代脚手架组装机制重新连接MAP激酶通路.

Sang-Hyun Park1, Ali Zarrinpar, Wendell A Lim

  • 1Department of Cellular and Molecular Pharmacology and Department of Biochemistry and Biophysics, University of California, 513 Parnassus Avenue, San Francisco, CA 94143, USA.

Science (New York, N.Y.)
|January 4, 2003
PubMed
概括

像酵母Ste5这样的脚手架蛋白主要是绑定信号分子,而不是精确地定向它们. 这种灵活性允许路径工程和进化.

科学领域:

  • 分子生物学分子生物学
  • 细胞信号传递 细胞信号传递
  • 蛋白质工程是一种蛋白质工程.

背景情况:

  • 支架蛋白在控制信号通路内的信息流动中的确切作用尚不清楚.
  • 人们争论的是,脚手架是否仅仅将路径组件结合在一起,还是积极调节它们的相互作用.

研究的目的:

  • 为了研究在基激活蛋白 (MAP) 激酶信号传递中的支架蛋白的功能要求.
  • 为了确定简单的绑定或精确的定位是否对脚手架的功能至关重要.
  • 探索利用脚手架蛋白来设计合成信号通路的潜力.

主要方法:

  • 使用酵母MAP激酶支架Ste5作为模型系统.
  • 引入了显著的立体化学扰动来评估脚手架的耐受性.
  • 替代原生酶招募相互作用与异质蛋白相互作用.
  • 设计了一种新的支架来绑定一组不同的激酶.

主要成果:

  • 斯蒂5脚手架对主要的立体化学变化有很高的耐受性.
  • 即使当原生交互被异质交互所取代时,功能信号也保持不变,这表明连接是关键.
  • 成功创建了一个具有非自然输入-输出特征的合成MAP激酶通路.

更多相关视频

Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy
10:41

Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy

Published on: June 7, 2019

Successful In vivo Calcium Imaging with a Head-Mount Miniaturized Microscope in the Amygdala of Freely Behaving Mouse
09:39

Successful In vivo Calcium Imaging with a Head-Mount Miniaturized Microscope in the Amygdala of Freely Behaving Mouse

Published on: August 26, 2020

相关实验视频

Last Updated: Jul 7, 2026

Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System
08:54

Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System

Published on: March 20, 2016

Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy
10:41

Visualizing Protein Kinase A Activity In Head-fixed Behaving Mice Using In Vivo Two-photon Fluorescence Lifetime Imaging Microscopy

Published on: June 7, 2019

Successful In vivo Calcium Imaging with a Head-Mount Miniaturized Microscope in the Amygdala of Freely Behaving Mouse
09:39

Successful In vivo Calcium Imaging with a Head-Mount Miniaturized Microscope in the Amygdala of Freely Behaving Mouse

Published on: August 26, 2020

结论:

  • 脚手架蛋白质充当灵活的组织枢纽,简单的绑定在很大程度上足以进行信号传输.
  • 支架的固有灵活性有助于信号通路的演变.
  • 脚手架可以通过工程设计,以创建具有定制功能的合成路径.