Metabotropic receptor 代谢型受体
A metabotropic receptor is a type of membrane receptor of eukaryotic cells that acts through a secondary messenger. It may be located at the surface of the cell or in vesicles.
Based on their structural and functional characteristics, the neurotransmitter receptor can be classified into two broad categories: metabotropic and ionotropic receptors. Ionotropic receptors form an ion channel pore. In contrast, metabotropic receptors are indirectly linked with ion channels on the plasma membrane of the cell through signal transduction mechanisms, often G proteins. Hence, G protein-coupled receptors are inherently metabotropic. Other examples of metabotropic receptors include tyrosine kinases and guanylyl cyclase receptors.