| Domain | Name | Category | Type |
| IPR000587 | Creatinase, N-terminal | Domain | Domain |
| IPR000994 | Peptidase M24 | Domain | Domain |
| IPR001131 | Peptidase M24B, X-Pro dipeptidase/aminopeptidase P, conserved site | Site | Conserved site |
| IPR029149 | Creatinase/Aminopeptidase P/Spt16, N-terminal | Family | Homologous superfamily |
| IPR032416 | Peptidase M24, C-terminal domain | Domain | Domain |
| IPR033740 | Aminopeptidase P | Domain | Domain |
| IPR036005 | Creatinase/aminopeptidase-like | Family | Homologous superfamily |