| Domain | Name | Category | Type |
| IPR000243 | Peptidase T1A, proteasome beta-subunit | Family | Family |
| IPR001353 | Proteasome, subunit alpha/beta | Family | Family |
| IPR016050 | Proteasome beta-type subunit, conserved site | Site | Conserved site |
| IPR023333 | Proteasome B-type subunit | Family | Family |
| IPR029055 | Nucleophile aminohydrolases, N-terminal | Family | Homologous superfamily |
| IPR037558 | Proteasome subunit beta 5 | Family | Family |