| Domain | Name | Category | Type |
| IPR000152 | EGF-type aspartate/asparagine hydroxylation site | PTM | PTM |
| IPR000436 | Sushi/SCR/CCP domain | Domain | Domain |
| IPR000742 | EGF-like domain | Domain | Domain |
| IPR000859 | CUB domain | Domain | Domain |
| IPR001254 | Serine proteases, trypsin domain | Domain | Domain |
| IPR001314 | Peptidase S1A, chymotrypsin family | Family | Family |
| IPR001881 | EGF-like calcium-binding domain | Domain | Domain |
| IPR009003 | Peptidase S1, PA clan | Family | Homologous superfamily |
| IPR018097 | EGF-like calcium-binding, conserved site | Site | Conserved site |
| IPR033116 | Serine proteases, trypsin family, serine active site | Site | Active site |
| IPR035707 | Complement C1r subcomponent | Family | Family |
| IPR035914 | Spermadhesin, CUB domain superfamily | Family | Homologous superfamily |
| IPR035976 | Sushi/SCR/CCP superfamily | Family | Homologous superfamily |
| IPR043504 | Peptidase S1, PA clan, chymotrypsin-like fold | Family | Homologous superfamily |