| Domain | Name | Category | Type |
| IPR012337 | Ribonuclease H-like superfamily | Family | Homologous superfamily |
| IPR013520 | Exonuclease, RNase T/DNA polymerase III | Domain | Domain |
| IPR034933 | Interferon-stimulated 20kDa exonuclease-like 2 | Family | Family |
| IPR036397 | Ribonuclease H superfamily | Family | Homologous superfamily |
| IPR037433 | ISG20, DEDDh 3'-5' exonuclease domain | Domain | Domain |