| IPR046938 | DNA clamp superfamily | Homologous Superfamily |
| IPR022648 | Proliferating cell nuclear antigen, PCNA, N-terminal | Domain |
| IPR000730 | Proliferating cell nuclear antigen, PCNA | Family |
| IPR022649 | Proliferating cell nuclear antigen, PCNA, C-terminal | Domain |
| IPR022659 | Proliferating cell nuclear antigen, PCNA, conserved site | Conserved Site |
| IPR036397 | Ribonuclease H superfamily | Homologous Superfamily |
| IPR054475 | DNA polymerase-epsilon, zinc finger domain | Domain |
| IPR012337 | Ribonuclease H-like superfamily | Homologous Superfamily |
| IPR023211 | DNA polymerase, palm domain superfamily | Homologous Superfamily |
| IPR006172 | DNA-directed DNA polymerase, family B | Family |
| IPR029703 | DNA polymerase epsilon catalytic subunit | Family |
| IPR043502 | DNA/RNA polymerase superfamily | Homologous Superfamily |
| IPR013697 | DNA polymerase epsilon, catalytic subunit A, C-terminal | Domain |
| IPR006133 | DNA-directed DNA polymerase, family B, exonuclease domain | Domain |
| IPR042087 | DNA polymerase family B, thumb domain | Homologous Superfamily |
| IPR055191 | DNA polymerase epsilon ,catalytic subunit A, thumb domain | Domain |