phosphorylation
/ˌfɑsfərəˈleɪʃən/
noun
- The chemical process of adding a phosphate group to a molecule, often to activate or regulate it in biological systems.
- Without proper phosphorylation, the cell cannot respond to external signals.
- The scientist explained how phosphorylation turns enzymes on and off.
- Phosphorylation of proteins is a key step in many cellular signaling pathways.