Canadian Society of Pharmacology and Therapeutics |
Glossary of PharmacologyAllosteric modulatorDefinition:A ligand that binds to allosteric site of the receptor and induces conformational changes that alter the efficacy and/or affinity of the agonists bound to the orthosteric site of the receptor. They can either enhance (positive allosteric modulator) or reduce (negative allosteric modulator) the efficacy and/or affinity of the orthosteric agonists. Silent/neutral allosteric modulator can bind to the allosteric site and prevents the binding of other allosteric ligands without triggering any changes in the affinity or efficacy of the orthosteric agonists.Example:
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