Ionotropic glutamate receptor that capabilities to be a cation permeable ligand-gated ion channel, gated by L-glutamate and the glutamatergic agonist kainic acid. L-glutamate acts being an excitatory neurotransmitter at quite a few synapses in the central anxious process. Binding on the excitatory neurotransmitter L-glutamate induces a conformation