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関連する概念動画

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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Inhibition of CDK Activity02:34

Inhibition of CDK Activity

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No description available
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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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Positive Regulator Molecules01:45

Positive Regulator Molecules

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To consistently produce healthy cells, the cell cycle—the process that generates daughter cells—must be precisely regulated.
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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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M-Cdk Drives Transition Into Mitosis02:15

M-Cdk Drives Transition Into Mitosis

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No description available
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関連する実験動画

Updated: Mar 31, 2026

Combining Mitotic Cell Synchronization and High Resolution Confocal Microscopy to Study the Role of Multifunctional Cell Cycle Proteins During Mitosis
08:33

Combining Mitotic Cell Synchronization and High Resolution Confocal Microscopy to Study the Role of Multifunctional Cell Cycle Proteins During Mitosis

Published on: December 5, 2017

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セルサイクルを最小限のCDK制御ネットワークで駆動する.

Damien Coudreuse1, Paul Nurse

  • 1Laboratory of Yeast Genetics and Cell Biology, The Rockefeller University, 1230 York Avenue, New York, New York 10065, USA. dcoudreuse@rockefeller.edu

Nature
|December 24, 2010
PubMed
まとめ

研究者らは,分裂酵母で簡素化された細胞サイクル制御システムを開発した. この最小限のネットワークは,単一のサイクリン依存タンパク質キナーゼ (CDK) 振動器によって駆動され,細胞の生殖と分裂を効率的に調節します.

科学分野:

  • 細胞生物学 細胞生物学
  • 分子生物学は分子生物学である.
  • システム生物学 システム生物学

背景:

  • ユカリオット細胞の増殖は,複雑な規制ネットワークによって制御されます.
  • 細胞循環の基本原理を理解することは,この複雑さのために依然として困難です.

研究 の 目的:

  • ミト細胞サイクルの中核の調節エンジンを調査する.
  • 分裂酵母における細胞繁殖を維持する最小限の制御ネットワークを構築する.

主な方法:

  • 分裂酵母で最小の単分子サイクリン依存タンパク質キナーゼ (CDK) モジュールを設計しました.
  • CDKモジュールからカノニカル規制コンポーネントの多くを削除しました.
  • 細胞サイクル進行を評価するために,設計されたネットワークの行動を観察した.

主要な成果:

  • 設計されたCDKモジュールは振動し,主要な細胞サイクルイベントを通して秩序ある進行を促します.
  • このCDK振動器は,細胞サイクルの主なオーガナイザーとして機能します.
  • CDKの2つの活動値が特定され,独立した細胞サイクルフェーズを定義し,タイミングと方向性を課した.

さらに関連する動画

Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols
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Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols

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Experimental Approaches to Study Mitochondrial Localization and Function of a Nuclear Cell Cycle Kinase, Cdk1
13:15

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

Published on: February 25, 2016

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関連する実験動画

Last Updated: Mar 31, 2026

Combining Mitotic Cell Synchronization and High Resolution Confocal Microscopy to Study the Role of Multifunctional Cell Cycle Proteins During Mitosis
08:33

Combining Mitotic Cell Synchronization and High Resolution Confocal Microscopy to Study the Role of Multifunctional Cell Cycle Proteins During Mitosis

Published on: December 5, 2017

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Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols
12:02

Studying Cell Cycle-regulated Gene Expression by Two Complementary Cell Synchronization Protocols

Published on: June 6, 2017

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Experimental Approaches to Study Mitochondrial Localization and Function of a Nuclear Cell Cycle Kinase, Cdk1
13:15

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

Published on: February 25, 2016

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結論:

  • CDK振動器に基づくシンプルなコアアーキテクチャは,真核細胞の細胞周期の基本的な制御を形成することができます.
  • この最小限のネットワークは,細胞繁殖を効率的に維持します.
  • この発見は,細胞循環調節の理解を簡素化する.