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相关概念视频

Determining the Plane of Cell Division02:13

Determining the Plane of Cell Division

Positioning the cell division plane is a critical step during development and cell differentiation, particularly during mitosis when the plane is essential for determining the size of the two daughter cells. The cell division plane is perpendicular to the plane of chromosome segregation, but different types of organisms have different cell division mechanisms to suit their morphology and function. 
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division starting...
Subcellular Fractionation01:32

Subcellular Fractionation

The homogenate obtained after cell lysis contains various membrane-bound organelles that can be further separated into pure fractions by subcellular fractionation. These isolates are used to study specific cellular components, analyze localized protein activity, and are even employed in diagnostics. Fractionation is typically achieved using centrifugation methods, the most common being density-gradient and differential centrifugation.
Differential Centrifugation
Differential centrifugation is...

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相关实验视频

Updated: Jun 25, 2026

Spatiotemporal Analysis of Cytokinetic Events in Fission Yeast
11:19

Spatiotemporal Analysis of Cytokinetic Events in Fission Yeast

Published on: February 20, 2017

在动物细胞中线粒分裂期间,戈尔吉装置的矩阵分数的分割.

Joachim Seemann1, Marc Pypaert, Tomohiko Taguchi

  • 1Department of Cell Biology, Ludwig Institute for Cancer Research, Yale University School of Medicine, 333 Cedar Street, Post Office Box 208002, New Haven, CT 06520-8002, USA.

Science (New York, N.Y.)
|February 2, 2002
PubMed
概括

戈尔吉器官矩阵,而不是其酶,可能是细胞分裂期间分裂的关键单元. 这种结构矩阵引导Golgi组分进入子细胞在线粒分裂过程中.

科学领域:

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

背景情况:

  • 戈尔吉装置在动物细胞分裂过程中经历了碎片化和重组.
  • 了解高尔基分裂的精确机制对于细胞分裂的真实性至关重要.

研究的目的:

  • 研究戈尔吉结构蛋白与戈尔吉酶在线粒分裂过程中的作用.
  • 为了确定戈尔吉矩阵是否可以独立于其酶含量作为分区单元.

主要方法:

  • 在体内使用brefeldin A或主导阴性Sar1p突变物进行高尔基装置分离.
  • 在治疗后的线粒分裂过程中观察戈尔吉酶和矩阵行为.
  • 对戈尔吉矩阵分割的分析与完整的有机体分割有关.

主要成果:

  • 观察到,高尔基酶在分离治疗后会回到内质网膜.
  • 戈尔吉结构蛋白质的矩阵仍然存在,并与完整的戈尔吉器官类似地分割.
  • 细胞进入和脱离线粒分裂正常进行,尽管戈尔吉分裂.

结论:

  • 戈尔吉矩阵由结构蛋白组成,在细胞分裂过程中可以作为主要的分区单元.

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Cell Fractionation of U937 Cells in the Absence of High-speed Centrifugation

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Last Updated: Jun 25, 2026

Spatiotemporal Analysis of Cytokinetic Events in Fission Yeast
11:19

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Published on: February 20, 2017

Mammalian Cell Division in 3D Matrices via Quantitative Confocal Reflection Microscopy
10:22

Mammalian Cell Division in 3D Matrices via Quantitative Confocal Reflection Microscopy

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Cell Fractionation of U937 Cells in the Absence of High-speed Centrifugation
06:53

Cell Fractionation of U937 Cells in the Absence of High-speed Centrifugation

Published on: January 18, 2019

  • 这种矩阵可能会引导Golgi衍生膜的继承到子细胞中.
  • 这些发现表明,戈尔吉遗传的新型模型是独立于线粒分裂过程中完整的酶功能.