| Domain | Name | Category | Type |
| IPR000169 | Cysteine peptidase, cysteine active site | Site | Active site |
| IPR001300 | Peptidase C2, calpain, catalytic domain | Domain | Domain |
| IPR002048 | EF-hand domain | Domain | Domain |
| IPR011992 | EF-hand domain pair | Family | Homologous superfamily |
| IPR022682 | Peptidase C2, calpain, large subunit, domain III | Domain | Domain |
| IPR022684 | Peptidase C2, calpain family | Family | Family |
| IPR029544 | Calpain-13 | Family | Family |
| IPR036213 | Calpain large subunit, domain III superfamily | Family | Homologous superfamily |
| IPR038765 | Papain-like cysteine peptidase superfamily | Family | Homologous superfamily |