| Domain | Name | Category | Type |
| IPR001999 | Osteonectin-like, conserved site | Site | Conserved site |
| IPR002048 | EF-hand domain | Domain | Domain |
| IPR002350 | Kazal domain | Domain | Domain |
| IPR003645 | Follistatin-like, N-terminal | Domain | Domain |
| IPR011992 | EF-hand domain pair | Family | Homologous superfamily |
| IPR015369 | Follistatin/Osteonectin EGF domain | Domain | Domain |
| IPR016359 | SPARC-like protein 1 | Family | Family |
| IPR018247 | EF-Hand 1, calcium-binding site | Site | Binding site |
| IPR019577 | SPARC/Testican, calcium-binding domain | Domain | Domain |
| IPR036058 | Kazal domain superfamily | Family | Homologous superfamily |