| Domain | Name | Category | Type |
| IPR001126 | UmuC domain | Domain | Domain |
| IPR006642 | Rad18, zinc finger UBZ4-type | Domain | Domain |
| IPR017961 | DNA polymerase, Y-family, little finger domain | Domain | Domain |
| IPR022880 | DNA polymerase IV | Family | Family |
| IPR024728 | DNA polymerase type-Y, HhH motif | Site | Conserved site |
| IPR036775 | DNA polymerase, Y-family, little finger domain superfamily | Family | Homologous superfamily |
| IPR043128 | Reverse transcriptase/Diguanylate cyclase domain | Family | Homologous superfamily |
| IPR043502 | DNA/RNA polymerase superfamily | Family | Homologous superfamily |