| Domain | Name | Category | Type |
| IPR000716 | Thyroglobulin type-1 | Domain | Domain |
| IPR000867 | Insulin-like growth factor-binding protein, IGFBP | Domain | Domain |
| IPR009030 | Growth factor receptor cysteine-rich domain superfamily | Family | Homologous superfamily |
| IPR012210 | Insulin-like growth factor binding protein 2 | Family | Family |
| IPR017891 | Insulin-like growth factor binding protein, N-terminal, Cys-rich conserved site | Site | Conserved site |
| IPR022321 | Insulin-like growth factor-binding protein family 1-6, chordata | Family | Family |
| IPR036857 | Thyroglobulin type-1 superfamily | Family | Homologous superfamily |