细胞在空间和时间中的信号传递:蛋白质在哪里聚在一起,以及它们何时分开
1Department of Pharmacology, Howard Hughes Medical Institute, Box 357750, University of Washington School of Medicine, Seattle, WA 98195, USA. scottjdw@u.washington.edu
概括
信号转导将细胞外信息传递给细胞内目标. 这个过程需要特定的蛋白质,如激活剂和酶,以正确组装用于细胞通信.
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:
- 信号转导是细胞的一个基本过程.
- 它涉及信息从细胞表面传输到细胞内部.
- 这种沟通对于细胞对外部刺激的反应至关重要.
研究的目的:
- 为了定义信号传导.
- 为了解释信息在等离子体膜上的运动.
- 为了强调蛋白质复合体形成的必要性.
主要方法:
- 信号传导路径的概念分析.
- 对参与细胞通信的分子机制的审查.
- 蛋白质基质相互作用的阐释.
主要成果:
- 信号转导是细胞外线索对细胞内效应器的协调中继.
- 信息处理发生在整个等离子体膜.
- 激活剂,效应剂,酶和基质的组装是必不可少的.
结论:
- 信号转导对于细胞功能至关重要.
- 信号组件的精确空间和时间组合至关重要.
- 了解这些机制是解读细胞行为的关键.
相关概念视频
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...
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.
Assembly of Signaling Complexes
Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
Types of Signaling Molecules
In multicellular organisms, many molecules transmit signals between cells to pass information. These signals vary in complexity and include small peptides, nucleotides, steroids, fatty acid derivatives, and dissolved gases such as nitric oxide. Some signaling molecules diffuse through the plasma membrane to act locally between neighboring cells or travel long distances. Others remain attached to the cell surface, transmitting information to other cells only when they make contact. In some...


