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相关概念视频

Robbers Cave04:49

Robbers Cave

During the 1950s, the landmark Robbers Cave experiment demonstrated that when groups must compete with one another, intergroup conflict, hostility, and even violence may result. At the Oklahoman summer camp, two troops of boys—termed the Rattlers and the Eagles—took part in a week-long tournament. During this time, their negativity culminated in derogatory name-calling, fistfights, and even vandalism and destruction of property. However, this work also revealed that such tension could be...
Rab Cascades01:25

Rab Cascades

Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.
The Unfolded Protein Response01:37

The Unfolded Protein Response

The ER is the hub of protein synthesis in a cell. It has robust systems to quality control protein folding and also for degradation of terminally misfolded proteins. Under normal conditions, a small proportion of misfolded proteins that cannot be salvaged need to be transported to the cytoplasm by the ER-associated degradation or ERAD pathways. However, if the ERAD cannot handle the misfolded proteins, the cell activates the unfolded protein response or UPR to adjust the protein folding...
Reclosers and Fuses01:26

Reclosers and Fuses

Automatic circuit reclosers enhance the protection of distribution circuits by interrupting and auto-reclosing an AC circuit according to a preset sequence. They effectively manage temporary faults on overhead distribution lines, often caused by tree limbs or wildlife, by briefly disrupting service to improve overall reliability. However, contact with reclosers or energized broken conductors on the ground can pose serious hazards.
A comprehensive protection scheme for radial distribution...
Flail Chest-I01:24

Flail Chest-I

Overview of Flail Chest
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
Regulation of the Unfolded Protein Response01:31

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...

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相关实验视频

Updated: Jul 8, 2026

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit
08:42

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit

Published on: November 21, 2023

PTRF触发了一个洞穴.

Rahul Chadda1, Satyajit Mayor

  • 1National Centre for Biological Sciences, Bellary Road, Bangalore 560 005, India.

Cell
|January 15, 2008
PubMed
概括
此摘要是机器生成的。

研究人员发现PTRF是洞穴的新组成部分,对细胞信号传递至关重要. 没有PTRF,洞穴会变平,导致洞穴素-1降解.

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Long-term Live-cell Imaging to Assess Cell Fate in Response to Paclitaxel
08:29

Long-term Live-cell Imaging to Assess Cell Fate in Response to Paclitaxel

Published on: May 14, 2018

相关实验视频

Last Updated: Jul 8, 2026

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit
08:42

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit

Published on: November 21, 2023

Long-term Live-cell Imaging to Assess Cell Fate in Response to Paclitaxel
08:29

Long-term Live-cell Imaging to Assess Cell Fate in Response to Paclitaxel

Published on: May 14, 2018

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:

  • 洞穴对于细胞信号通路至关重要.
  • 洞穴是等离子体膜的圆筒形的内膜.
  • 洞穴蛋白质是洞穴的关键结构组成部分.

研究的目的:

  • 为了识别与洞穴毛层相关的新型蛋白质.
  • 阐明PTRF在洞穴形成和稳定中的作用.
  • 了解PTRF和caveolin-1动态之间的关系.

主要方法:

  • 免疫光显微镜可视化洞穴和蛋白质定位.
  • 生物化学测试以确定蛋白质相互作用.
  • 涉及PTRF敲击或过度表达的细胞研究.

主要成果:

  • 鉴定出PTRF是洞穴毛层的一个新组成部分.
  • 缺少PTRF会导致洞穴的平整.
  • 卡维奥林-1从平坦的洞穴中释放出来,随后降解.

结论:

  • 在维护洞穴结构和功能方面,PTRF起着至关重要的作用.
  • 在洞穴中,PTRF对于洞穴-1的稳定性至关重要.
  • 干扰PTRF通过影响洞穴完整性影响细胞信号传输.