| Domain | Name | Category | Type |
| IPR000977 | DNA ligase, ATP-dependent | Family | Family |
| IPR001357 | BRCT domain | Domain | Domain |
| IPR001510 | Zinc finger, PARP-type | Domain | Domain |
| IPR012308 | DNA ligase, ATP-dependent, N-terminal | Domain | Domain |
| IPR012309 | DNA ligase, ATP-dependent, C-terminal | Domain | Domain |
| IPR012310 | DNA ligase, ATP-dependent, central | Domain | Domain |
| IPR012340 | Nucleic acid-binding, OB-fold | Family | Homologous superfamily |
| IPR016059 | DNA ligase, ATP-dependent, conserved site | Site | Conserved site |
| IPR031916 | DNA ligase 3, BRCT domain | Domain | Domain |
| IPR036420 | BRCT domain superfamily | Family | Homologous superfamily |
| IPR036599 | DNA ligase, ATP-dependent, N-terminal domain superfamily | Family | Homologous superfamily |
| IPR036957 | Zinc finger, PARP-type superfamily | Family | Homologous superfamily |