| Domain | Name | Category | Type |
| IPR000203 | GPS motif | Domain | Domain |
| IPR000832 | GPCR, family 2, secretin-like | Family | Family |
| IPR000859 | CUB domain | Domain | Domain |
| IPR001759 | Pentraxin-related | Family | Family |
| IPR001879 | GPCR, family 2, extracellular hormone receptor domain | Domain | Domain |
| IPR013320 | Concanavalin A-like lectin/glucanase domain superfamily | Family | Homologous superfamily |
| IPR017981 | GPCR, family 2-like | Domain | Domain |
| IPR017983 | GPCR, family 2, secretin-like, conserved site | Site | Conserved site |
| IPR035914 | Spermadhesin, CUB domain superfamily | Family | Homologous superfamily |
| IPR036445 | GPCR family 2, extracellular hormone receptor domain superfamily | Family | Homologous superfamily |