Ionotropic glutamate receptor that features like a cation permeable ligand-gated ion channel, gated by L-glutamate as well as the glutamatergic agonist kainic acid. L-glutamate functions as an excitatory neurotransmitter at numerous synapses while in the central anxious method. Binding from the excitatory neurotransmitter L-glutamate induces a conf