| Domain | Name | Category | Type |
| IPR000626 | Ubiquitin-like domain | Domain | Domain |
| IPR001394 | Peptidase C19, ubiquitin carboxyl-terminal hydrolase | Domain | Domain |
| IPR018200 | Ubiquitin specific protease, conserved site | Site | Conserved site |
| IPR019954 | Ubiquitin conserved site | Site | Conserved site |
| IPR028889 | Ubiquitin specific protease domain | Domain | Domain |
| IPR029071 | Ubiquitin-like domain superfamily | Family | Homologous superfamily |
| IPR038765 | Papain-like cysteine peptidase superfamily | Family | Homologous superfamily |
| IPR044635 | Ubiquitin carboxyl-terminal hydrolase 14-like | Family | Family |