| Domain | Name | Category | Type |
| IPR003937 | Potassium channel, voltage dependent, KCNQ | Family | Family |
| IPR005821 | Ion transport domain | Domain | Domain |
| IPR013821 | Potassium channel, voltage dependent, KCNQ, C-terminal | Domain | Domain |
| IPR015573 | Potassium channel, voltage dependent, KCNQ4 | Family | Family |
| IPR028325 | Voltage-gated potassium channel | Family | Family |