| Domain | Name | Category | Type |
| IPR003532 | Short hematopoietin receptor, family 2, conserved site | Site | Conserved site |
| IPR013783 | Immunoglobulin-like fold | Family | Homologous superfamily |
| IPR015321 | Type I cytokine receptor, cytokine-binding domain | Domain | Domain |
| IPR036116 | Fibronectin type III superfamily | Family | Homologous superfamily |
| IPR040907 | IL-3 receptor alpha chain, N-terminal | Domain | Domain |