Ionotropic glutamate receptors (NMDA, AMPA and Kainate receptors) are cation-selective tetramers formed by multimeric assemblies of subunits. AMPA receptors comprise of homomers or heteromers of GluA1, GluA2, GluA3 and GluA4 subunits. NMDA receptors are heteromic assemblies of GluN1, GluN2A, GluN2B, GluN2C, GluN2D, GluN3A and GluN3B. Kainate receptors can be expressed as homomers of GluK1, GluK2 or GluK3. Researchers can save up to 50% on potent & selective NMDA, AMPA and Kainate receptor antagonists, agonists and allosteric modulators from Hello Bio - they are up to half the price of other suppliers.