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Single-cell Microinjection for Cell Communication Analysis
Published on: February 26, 2017
フォスフォチロジンシグナル伝達:新しいセルラー通信システムの進化
1Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA 94158, USA. lim@cmp.ucsf.edu
Cell
|September 4, 2010
まとめ
細胞の重要なプロセスであるチロシン・リン酸化の進化には,チロシンキナーゼ,フォスファタゼ,SH2ドメインのツールキットが含まれていた. ゲノム解析により,このシステムが明らかになった.
科学分野:
- セルラー・シグナリング
- 分子生物学は分子生物学である.
- 進化生物学の進化生物学について
背景:
- タイロシン酸化は,多数の細胞機能に不可欠である.
- 規制ツールキットには,チロシンキナーゼ,フォスフォチロシンフォスファタゼ,Srcホモロジー2 (SH2) ドメインが含まれています.
- このシグナリングシステムは,最近の進化的イノベーションです.
研究 の 目的:
- フォスフォチロジンシグナル伝達システムの進化的起源を調査する.
- なぜこのシステムがメタゾーンにとって急速に不可欠になったのかを理解するために.
主な方法:
- ゲノム解析は,進化の歴史を研究するために使用されました.
- 比較ゲノミクスのアプローチは,ツールキットの起源を追跡するために使用された可能性が高い.
主要な成果:
- フォスフォチロジンシグナル伝達のためのツールキットは,比較的新しい進化的発展です.
- ゲノムデータは,システムの出現についての洞察を提供します.
結論:
- キナーゼ,フォスファタゼ,SH2ドメインを含むフォスフォチロジンシグナル伝達システムは,進化の歴史において比較的最近に発生した.
- その急速な普及は,メタゾアンの生命にとって極めて重要であることを強調しています.
関連する概念動画
Cell-surface Signaling
Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse across the cell membrane. In order to be able to affect a cell without entering it, these hormones bind to receptors on the cell membrane. When a first messenger, a hormone, binds to a receptor, a signal cascade is set off, causing second messengers, proteins inside the cell, to become activated, resulting in downstream effects.
What is Cell Signaling?
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
What is Cell Signaling?
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
Intracellular Signaling Cascades
Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...
Overview of Cell Signaling
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Overview of Cell Signaling
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...

