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相关概念视频

Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

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The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
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Positive Regulator Molecules02:39

Positive Regulator Molecules

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Mitotic cell division results in daughter cells that exactly resemble the parent cell. However, errors in the DNA replication or distribution of genetic material may lead to genetic mutations that may be passed down to every new cell formed from the resulting abnormal cell. Propagation of such mutant cells is restricted through checkpoint mechanisms present at different stages of the cell cycle. These checkpoints involve regulator molecules that either promote or demote cell cycle events.
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M-Cdk Drives Transition Into Mitosis02:15

M-Cdk Drives Transition Into Mitosis

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Checkpoints throughout the cell cycle serve as safeguards and gatekeepers, allowing the cell cycle to progress in favorable conditions and slow or halt it in problematic ones. This regulation is known as the cell cycle control system.
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
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Anaphase Promoting Complex00:50

Anaphase Promoting Complex

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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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Negative Regulator Molecules01:23

Negative Regulator Molecules

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Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
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The Cell Cycle Control System01:28

The Cell Cycle Control System

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The cell cycle regulation directs how a cell proceeds from one phase to the next and begins mitosis. The cell cycle control system includes intracellular regulatory molecules and external triggers. They provide "stop" or "advance" signals and operate at specific cell cycle stages termed checkpoints to ensure that a particular process is completed before the cell advances to the next phase.
Cyclins and cyclin-dependent kinases (Cdks) are the primary cell cycle regulators and...
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相关实验视频

Updated: May 29, 2025

Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors
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Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors

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Cdk6的功能通过其独特的C端进行了批判性调节.

Alessia Schirripa1, Helge Schöppe2, Sofie Nebenfuehr1

  • 1Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria.

iScience
|February 3, 2025
PubMed
概括

CDK6 (环素依赖激酶6) 的C端对其促进细胞增殖的功能至关重要. 切断这一部分会损害核转移和与关键合作伙伴的结合,阻碍白血病的进展.

关键词:
生物化学 生物化学癌症 癌症 癌症 癌症分子结构分子结构结构生物学是结构生物学.

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Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay
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Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay

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Experimental Approaches to Study Mitochondrial Localization and Function of a Nuclear Cell Cycle Kinase, Cdk1
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Experimental Approaches to Study Mitochondrial Localization and Function of a Nuclear Cell Cycle Kinase, Cdk1

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相关实验视频

Last Updated: May 29, 2025

Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors
10:33

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Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay
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Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay

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Experimental Approaches to Study Mitochondrial Localization and Function of a Nuclear Cell Cycle Kinase, Cdk1
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Experimental Approaches to Study Mitochondrial Localization and Function of a Nuclear Cell Cycle Kinase, Cdk1

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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
  • 癌症研究 癌症研究

背景情况:

  • 细胞循环调节至关重要,其破坏是癌症的标志.
  • 循环素依赖性酶6 (CDK6) 是细胞循环中的中央信号枢纽,其活性由相互作用的蛋白调节.

研究的目的:

  • 在白血病模型中研究CDK6的C端的功能意义.
  • 阐明CDK6C端在蛋白相互作用,核转位和扩散中的作用.

主要方法:

  • 在白血病模型中分析C端截断的Cdk6 (Cdk6 ΔC).
  • 蛋白质组分析和蛋白质建模以评估蛋白质相互作用和结构灵活性.
  • 核转位,染色体相互作用,扩散和疾病进展的评估.

主要成果:

  • 在C端截断的Cdk6 (Cdk6 ΔC) 呈现出减少的核转位和染色体相互作用.
  • 在白血病模型中,Cdk6 ΔC未能增强白血病的扩散和疾病进展.
  • 鉴定出C终端对CDK6灵活性和结合环林D,p27Kip1和INK4蛋白质至关重要,但不是环林B.

结论:

  • C终端是CDK6的关键监管领域,对于其与关键合作伙伴的互动和整体功能至关重要.
  • 破坏CDK6的C端显著损害其在促进细胞增殖和疾病进展中的作用.
  • 向CDK6的C端可以为CDK6失调驱动的癌症提供一种新的治疗策略.