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相关概念视频

Cell Polarization by Rho Proteins01:21

Cell Polarization by Rho Proteins

Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...

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相关实验视频

Updated: Jul 6, 2026

Affinity Precipitation of Active Rho-GEFs Using a GST-tagged Mutant Rho Protein (GST-RhoA(G17A)) from Epithelial Cell Lysates
11:28

Affinity Precipitation of Active Rho-GEFs Using a GST-tagged Mutant Rho Protein (GST-RhoA(G17A)) from Epithelial Cell Lysates

Published on: March 31, 2012

通过附着结的顶端定位和RhoGEF2控制Drosophila胃化.

Verena Kölsch1, Thomas Seher, Gregorio J Fernandez-Ballester

  • 1Institute of Genetics, University of Cologne, Zülpicher Strasse 47, 50674 Cologne, Germany.

Science (New York, N.Y.)
|January 20, 2007
PubMed
概括

跨膜蛋白T48和G蛋白信号编排细胞形状在Drosophila胃化过程中发生变化. 它们一起招募关键蛋白质,以确保快速的尖端收缩,以确保中皮体的发育.

科学领域:

  • 发育生物学 发展生物学
  • 细胞生物学 细胞生物学
  • 遗传学 是一个遗传学.

背景情况:

  • 表面膜发育,这是一个基本的发育过程,涉及到顶收缩.
  • 在Drosophila胃化过程中,转录因子Twist通过尖端收缩驱动中皮膜发育.
  • 扭曲控制的G蛋白信号传递有助于诱导,但并不能完全解释Twist的活动.

研究的目的:

  • 为了确定涉及Drosophila胃流的新型Twist目标.
  • 阐明了Twist介导的顶尖收缩背后的分子机制.
  • 了解T48如何与细胞形状变化的G蛋白信号功能.

主要方法:

  • 在Drosophila melanogaster中进行遗传选.
  • 基因表达和蛋白质定位的分子分析.
  • 细胞生物学测试,以观察顶尖收缩和细胞骨动态.

主要成果:

  • 通过膜蛋白T48作为Twist的直接目标的鉴定.
  • T48与G蛋白信号协同作用,调节细胞形状.
  • T48促进了粘附结和RhoGEF2的招募到缩部位.

更多相关视频

A Cell-based Assay to Investigate Non-muscle Myosin II Contractility via the Folded-gastrulation Signaling Pathway in Drosophila S2R+ Cells
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A Cell-based Assay to Investigate Non-muscle Myosin II Contractility via the Folded-gastrulation Signaling Pathway in Drosophila S2R+ Cells

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Optogenetic Inhibition of Rho1-Mediated Actomyosin Contractility Coupled with Measurement of Epithelial Tension in Drosophila Embryos
12:35

Optogenetic Inhibition of Rho1-Mediated Actomyosin Contractility Coupled with Measurement of Epithelial Tension in Drosophila Embryos

Published on: April 14, 2023

相关实验视频

Last Updated: Jul 6, 2026

Affinity Precipitation of Active Rho-GEFs Using a GST-tagged Mutant Rho Protein (GST-RhoA(G17A)) from Epithelial Cell Lysates
11:28

Affinity Precipitation of Active Rho-GEFs Using a GST-tagged Mutant Rho Protein (GST-RhoA(G17A)) from Epithelial Cell Lysates

Published on: March 31, 2012

A Cell-based Assay to Investigate Non-muscle Myosin II Contractility via the Folded-gastrulation Signaling Pathway in Drosophila S2R+ Cells
07:15

A Cell-based Assay to Investigate Non-muscle Myosin II Contractility via the Folded-gastrulation Signaling Pathway in Drosophila S2R+ Cells

Published on: August 19, 2018

Optogenetic Inhibition of Rho1-Mediated Actomyosin Contractility Coupled with Measurement of Epithelial Tension in Drosophila Embryos
12:35

Optogenetic Inhibition of Rho1-Mediated Actomyosin Contractility Coupled with Measurement of Epithelial Tension in Drosophila Embryos

Published on: April 14, 2023

结论:

  • T48是Twist驱动的线路中的一个关键组成部分.
  • T48,G蛋白信号,粘附结和RhoGEF2的协调作用确保了高效的尖端收缩.
  • 这项研究揭示了一种在胚胎发育过程中调节细胞形状的新机制.