| Domain | Name | Category | Type |
| IPR001098 | DNA-directed DNA polymerase, family A, palm domain | Domain | Domain |
| IPR001650 | Helicase, C-terminal | Domain | Domain |
| IPR002298 | DNA polymerase A | Family | Family |
| IPR011545 | DEAD/DEAH box helicase domain | Domain | Domain |
| IPR012337 | Ribonuclease H-like superfamily | Family | Homologous superfamily |
| IPR014001 | Helicase superfamily 1/2, ATP-binding domain | Domain | Domain |
| IPR019760 | DNA-directed DNA polymerase, family A, conserved site | Site | Conserved site |
| IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Family | Homologous superfamily |
| IPR036397 | Ribonuclease H superfamily | Family | Homologous superfamily |
| IPR043502 | DNA/RNA polymerase superfamily | Family | Homologous superfamily |