the process by which a cell responds to substances in its environment. the binding of a substance to a molecule on the surface of a cell causes signals to be passed from one molecule to another inside the cell. these signals can affect many functions of the cell, including cell division and cell death. cells that have permanent changes in signal transduction molecules may develop into cancer.
出典:Wiktionary
出典:『Wiktionary』 (2012/03/27 18:33 UTC 版)
signal transduction (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/31 21:00 UTC 版)
Signal transduction is the process by which an extracellular signaling molecule activates a membrane receptor, that in turn alters intracellular molecules creating a response. There are two stages in this process: a signalling molecule activates a certain receptor on the cell membrane, causing a second messenger to continue the signal into the cell and elicit a physiological response. In either step, the signal can be amplified, meaning that one signalling molecule can cause many responses.