| Domain | Name | Category | Type |
| IPR000834 | Peptidase M14, carboxypeptidase A | Domain | Domain |
| IPR008969 | Carboxypeptidase-like, regulatory domain superfamily | Family | Homologous superfamily |
| IPR015567 | Peptidase M14B, caboxypeptidase D | Family | Family |
| IPR033848 | Carboxypeptidase D, carboxypeptidase-like domain 3 | Domain | Domain |
| IPR034224 | Carboxypeptidase D, carboxypeptidase-like domain 2 | Domain | Domain |