Nicotinic acetylcholine receptor – ganglionic type (nAChR (ganglionic type))

The nicotinic acetylcholine receptor – ganglionic type is a pentameric ligand-gated ion channel found primarily in autonomic ganglia of the peripheral nervous system. It mediates fast synaptic transmission by responding to acetylcholine, resulting in cation influx (Na⁺, K⁺, Ca²⁺) and neuronal depolarization. The ganglionic type is usually composed of specific subunits such as α3 and β4, and may include additional variants. These receptors are pharmacologically distinct from the muscle- and central neuronal types and serve as therapeutic targets for conditions like hypertension, nicotine addiction, and pain. A variety of clinically relevant drugs (agonists, antagonists, modulators), as well as natural toxins, interact with ganglionic nAChRs for both therapeutic and research purposes. Their widespread distribution and fundamental role in autonomic neurotransmission create both treatment opportunities and significant safety risks.

Other names

Neuronal nicotinic acetylcholine receptorGanglionic nicotinic acetylcholine receptornAChR (neuronal type)Nicotinic ganglionic receptor

Agonists activate the receptor to cause cation influx and depolarization. Antagonists inhibit receptor activation, blocking synaptic transmission. Partial agonists provide submaximal receptor activation for therapeutic modulation. Modulation by toxins (competitive/non-competitive inhibition)