| Domain | Name | Category | Type |
| IPR001320 | Ionotropic glutamate receptor | Domain | Domain |
| IPR001508 | Ionotropic glutamate receptor, metazoa | Family | Family |
| IPR001828 | Receptor, ligand binding region | Domain | Domain |
| IPR019594 | Ionotropic glutamate receptor, L-glutamate and glycine-binding domain | Domain | Domain |
| IPR028082 | Periplasmic binding protein-like I | Family | Homologous superfamily |