분자세포생물학 chapter 16, 17, 18, 20 정리본
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본문내용
Ch 16. Cell signaling
개요
1. Overview of general principles of cell signaling
2. Two of the main systems that animal cells use to receive and interpret signals
3. Signaling mechanisms that operates in plants
General principles of cell signaling
(extracellular 분자의 종류와 target cell이 이 신호를 받으면 어떤 일이 일어나는지)
Signal reception and transduction : (cell signaling)
Signaling cell – extracellular signal molecule -> detected by target cell (possess receptors)
Signal transduction begin : receptor on a target cell receives an incoming extracellular signal and produces intracellular signaling molecules
Signals can act over a long or short range
4 kind of communication
1. Hormones
- Secreting it into an animal’s bloodstream of a plant’s sap
- From endocrine cells
2. Paracrine signaling
- The signal molecules diffuse locally through the extracellular fluid
- Signal molecules : local mediators
3. Neuronal signaling
- Not widely but is delivered quickly and specifically to individual target cells
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