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Receptor Tyrosine Kinases01:26

Receptor Tyrosine Kinases

Receptor tyrosine kinases or RTKs are membrane-bound receptors that phosphorylate specific tyrosine on protein substrates. RTKs regulate cellular growth, differentiation, survival, and migration. They contain an extracellular ligand binding domain, a transmembrane domain, and a cytosolic tail with intrinsic kinase activity. Several extracellular signaling molecules activate RTKs in one or more ways and relay the signal downstream. Ligands such as platelet-derived growth factor (PDGF) or...

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相关实验视频

Updated: Jul 19, 2026

Assaying Protein Kinase Activity with Radiolabeled ATP
08:05

Assaying Protein Kinase Activity with Radiolabeled ATP

Published on: May 26, 2017

用光调节的样本采集蛋白氨酸激酶活性.

Qunzhao Wang1, Zhaohua Dai, Sean M Cahill

  • 1Department of Biochemistry, The Albert Einstein College of Medicine of Yeshiva University, 1300 Morris Park Avenue, Bronx, NY 10461, USA.

Journal of the American Chemical Society
|October 26, 2006
PubMed
概括

研究人员开发了一种新型的光调节报告器,用于蛋白质氨酸激酶活性. 这种工具可以精确控制激酶活性测量,克服了用于细胞循环和环境研究的现有光报告器的局限性.

科学领域:

  • 生物化学 生物化学
  • 细胞生物学 细胞生物学
  • 分子生物学分子生物学

背景情况:

  • 蛋白氨酸激酶 (PTKs) 是控制细胞行为的关键信号介质.
  • 现有的光PTK记者可以过早激活,限制分析.
  • 精确测量PTK活性对于理解细胞信号来说至关重要.

研究的目的:

  • 开发第一个针对蛋白质氨酸激酶活性的光调节报告器.
  • 为了允许对激酶活性进行受控的时间采样.
  • 为记者提供具有多样化的光物理性质的多功能工具包.

主要方法:

  • 设计和合成一个新的光感应PTK报道系统.
  • 结合了各种具有明显光物理性质的光体.
  • 在蜂环境中测试报告器功能.

主要成果:

  • 展示了第一个光调节的氨酸激酶记者.
  • 成功控制酶活动采样时间.
  • 创建一个带有多个光子选项的传感器阵列.

结论:

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相关实验视频

Last Updated: Jul 19, 2026

Assaying Protein Kinase Activity with Radiolabeled ATP
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Assaying Protein Kinase Activity with Radiolabeled ATP

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Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays
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Published on: September 19, 2018

Characterization at the Molecular Level using Robust Biochemical Approaches of a New Kinase Protein
11:23

Characterization at the Molecular Level using Robust Biochemical Approaches of a New Kinase Protein

Published on: June 30, 2019

  • 开发的光调节报告员为PTK活动分析提供了前所未有的控制.
  • 这项技术有助于详细研究细胞循环期间的PTK动态以及对刺激的反应.
  • 传感器阵列为多重成像和先进的细胞调查提供了灵活性.