| IPR043087 | EME1, nuclease domain, subdomain 2 | Homologous Superfamily |
| IPR042530 | EME1/EME2, C-terminal domain | Homologous Superfamily |
| IPR047522 | Crossover junction endonuclease EME1, XPF-like nuclease domain, vertebrates | Domain |
| IPR033310 | Mms4/EME1/EME2 | Family |
| IPR043086 | EME1, nuclease domain, subdomain 1 | Homologous Superfamily |
| IPR006166 | ERCC4 domain | Domain |
| IPR011335 | Restriction endonuclease type II-like | Homologous Superfamily |
| IPR047417 | MUS81, winged helix domain | Domain |
| IPR010996 | Crossover junction endonuclease MUS81-like, HHH domain | Domain |
| IPR027421 | DNA polymerase lambda lyase domain superfamily | Homologous Superfamily |
| IPR006166 | ERCC4 domain | Domain |
| IPR047416 | MUS81, XPF-like nuclease domain | Domain |
| IPR042530 | EME1/EME2, C-terminal domain | Homologous Superfamily |
| IPR033309 | Crossover junction endonuclease Mus81 | Family |
| IPR036388 | Winged helix-like DNA-binding domain superfamily | Homologous Superfamily |