Pharmacology

Ligand-Gated Ion Channels

  • Transmembrane proteins
  • Central aqueous channel
  • Open rapidly after ligand binding
    • Hence produce rapid signal transmission and generation of action potentials
  • Examples
    • Nicotinic acetylcholine receptors: main receptor at the NMJ and in many autonomic ganglia
    • GABAA
    • 5HT3 receptors
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G-Proteins