Main Page | See live article | Alphabetical index Ionotropic receptor (also ligand gated ion channel) is a transmembrane receptor bound with an ion channel. If the receptor binds with it's agonist (and if all additional conditions like right membrane potential, absensce of blockator, ion block, presence of desired co-agonists are met) - then the ion channel opens. See also: Metabotropic receptor. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.