Cascade of molecular events converting extracellular signal (ligand) into intracellular response. Receptor → effectors → second messengers → kinase/phosphatase cascades → transcription/post-translational output.
Signal transduction
Related concepts
- Plasma membrane
- G-protein coupled receptor (GPCR)
- Second messenger
- Receptor tyrosine kinase (RTK)
- Wnt pathway (canonical)
- Notch pathway
- TGF-β pathway
- Morphogen
- Hormone
- Quorum sensing
- Drug–target interaction
- DNA damage checkpoint (ATM/ATR)
- Bombykol sex pheromone
- Queen mandibular pheromone
- Ant trail pheromone
- Strigolactone signalling
- Bacterial quorum sensing
- Coral mass-spawning cues