| IPR054712 | CRISPR-associated nuclease/helicase Cas3 domain | Domain |
| IPR048824 | CRISPR-associated Cas3 subtype I-F/YPEST-like, C-terminal domain | Domain |
| IPR048823 | CRISPR-associated nuclease/helicase Cas3, I-F/YPEST, Cas2 domain | Domain |
| IPR013395 | CRISPR-associated Cas3, Yersinia-type | Family |
| IPR038257 | CRISPR-associated Cas3-type HD domain superfamily | Homologous Superfamily |
| IPR006483 | CRISPR-associated Cas3-type, HD domain | Domain |
| IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
| IPR020816 | Histone-like DNA-binding protein, conserved site | Conserved Site |
| IPR010992 | Integration host factor (IHF)-like DNA-binding domain superfamily | Homologous Superfamily |
| IPR005685 | Integration host factor, beta subunit | Family |
| IPR000119 | Histone-like DNA-binding protein | Family |
| IPR020816 | Histone-like DNA-binding protein, conserved site | Conserved Site |
| IPR010992 | Integration host factor (IHF)-like DNA-binding domain superfamily | Homologous Superfamily |
| IPR005684 | Integration host factor, alpha subunit | Family |
| IPR000119 | Histone-like DNA-binding protein | Family |
| IPR002729 | CRISPR-associated protein Cas1 | Family |
| IPR042206 | CRISPR-associated endonuclease Cas1, C-terminal domain | Homologous Superfamily |
| IPR042211 | CRISPR-associated endonuclease Cas1, N-terminal domain | Homologous Superfamily |
| IPR050646 | CRISPR-associated endonuclease Cas1 | Family |
| IPR019857 | CRISPR-associated protein Cas1, YPEST subtype | Family |