| Domain | Name | Category | Type |
| IPR003275 | Potassium channel, inwardly rectifying, Kir3.2 | Family | Family |
| IPR013518 | Potassium channel, inwardly rectifying, Kir, cytoplasmic | Family | Homologous superfamily |
| IPR014756 | Immunoglobulin E-set | Family | Homologous superfamily |
| IPR016449 | Potassium channel, inwardly rectifying, Kir | Family | Family |
| IPR040445 | Potassium channel, inwardly rectifying, transmembrane domain | Domain | Domain |
| IPR041647 | Inward rectifier potassium channel, C-terminal | Domain | Domain |