A substance whose release within a cell is promoted by a hormone and which brings about a response by the cell.
Example sentencesExamples
- Calcium is involved as a second messenger in many reactions of the plant cell to external signals.
- Fatty acids function as second messengers and coregulators of gene transcription.
- This enzyme is abundantly expressed in the lung tissue and thereby stabilizes the second messenger.
- Examples of proteins and second messengers that appear to act in multiple response pathways are also described.
- When the neurotransmitter binds to its receptor, it activates the second messenger system.