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相关概念视频

Apoptosis01:30

Apoptosis

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Apoptosis is a combination of two Greek words, 'apo' and 'ptosis,' meaning separation and falling off, respectively. Hippocrates used this word to describe gangrene, which was caused due to bandaging of fractured bones. Apoptosis was distinguished from necrosis in 1970 when John Kerr reported observations of morphological changes occurring during apoptosis. During one experiment, he observed that the disruption of blood supply to the liver tissue resulted in a size...
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The eukaryotic promoter region is a segment of DNA located upstream of a gene. It contains an RNA polymerase binding site, a transcription start site, and several cis-regulatory sequences.  The proximal promoter region is located in the vicinity of the gene and has cis-regulatory sequences and the core promoter. The core promoter is the binding site for RNA polymerase and is usually located between -35 and +35 nucleotides from the transcription start site. The distal promoter regions are...
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The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...
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PAX交互蛋白1 (PTIP) 促进了细胞亡.

Ching-Jung Huang1, Hyein Cho2, Chuan Li3

  • 1Department of Biology, Arts and Sciences, New York University in Shanghai, Shanghai 200122, China.

Journal of cellular signaling
|January 29, 2026
PubMed
概括
此摘要是机器生成的。

交互PAX的蛋白1 (PTIP) 可以从核移动到线粒体,导致细胞死亡. PTIP的特定区域对于这种线粒体亡及其细胞周期作用至关重要.

关键词:
乳腺癌C-终端 乳腺癌类交换机重组组合类交换机重组它们是DNA DNA DNA DNA.免疫球蛋白是一种免疫球蛋白.

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科学领域:

  • 分子生物学分子生物学
  • 细胞生物学 细胞生物学
  • 遗传学 是一个遗传学.

背景情况:

  • PAX相互作用蛋白1 (PTIP/PAXIP1) 是一种具有六个BRCT重复的蛋白质.
  • 在造血系中,PTIP参与DNA损伤修复,基因素甲基化和VDJ/CSR.

研究的目的:

  • 研究PTIP在细胞亡中的新型作用.
  • 确定PTIP诱导亡的机制.

主要方法:

  • 通过基于细胞的测试研究PTIP局部化和功能.
  • 研究了PTIP缺失或突变对细胞亡和细胞周期进展的影响.

主要成果:

  • PTIP的一小部分从核转移到线粒体,导致线粒体聚合和亡.
  • 删除富含谷氨酸的N端区域,BRCT3突变或BRCT5域的切断可以减少PTIP诱导的亡.
  • 这些修改也影响了PTIP以前已知的G2/M细胞周期功能.

结论:

  • PTIP利用了一种依赖于线粒体的亡途径.
  • PTIP的特定域对于其亡功能及其在细胞循环调节中的作用至关重要.