| IPR000426 | Proteasome alpha-subunit, N-terminal domain | Domain |
| IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| IPR050115 | Proteasome_alpha | Unknown |
| IPR023332 | Proteasome alpha-type subunit | Family |
| IPR001353 | Proteasome, subunit alpha/beta | Family |
| IPR034642 | Proteasome subunit alpha6 | Family |
| IPR000426 | Proteasome alpha-subunit, N-terminal domain | Domain |
| IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| IPR050115 | Proteasome_alpha | Unknown |
| IPR023332 | Proteasome alpha-type subunit | Family |
| IPR001353 | Proteasome, subunit alpha/beta | Family |
| C [auth F] | IPR000426 | Proteasome alpha-subunit, N-terminal domain | Domain |
| C [auth F] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| C [auth F] | IPR050115 | Proteasome_alpha | Unknown |
| C [auth F] | IPR023332 | Proteasome alpha-type subunit | Family |
| C [auth F] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| D [auth G] | IPR000426 | Proteasome alpha-subunit, N-terminal domain | Domain |
| D [auth G] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| D [auth G] | IPR050115 | Proteasome_alpha | Unknown |
| D [auth G] | IPR023332 | Proteasome alpha-type subunit | Family |
| D [auth G] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| E [auth H] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
| E [auth H] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| E [auth H] | IPR023333 | Proteasome B-type subunit | Family |
| E [auth H] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| E [auth H] | IPR000243 | Peptidase T1A, proteasome beta-subunit | Family |
| F [auth I] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
| F [auth I] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| F [auth I] | IPR024689 | Proteasome beta subunit, C-terminal | Domain |
| F [auth I] | IPR023333 | Proteasome B-type subunit | Family |
| F [auth I] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| F [auth I] | IPR000243 | Peptidase T1A, proteasome beta-subunit | Family |
| G [auth J] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
| G [auth J] | IPR023333 | Proteasome B-type subunit | Family |
| G [auth J] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| G [auth J] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| G [auth J] | IPR033811 | Proteasome beta 3 subunit | Family |
| H [auth K] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
| H [auth K] | IPR023333 | Proteasome B-type subunit | Family |
| H [auth K] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| H [auth K] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| H [auth K] | IPR035206 | Proteasome subunit beta 2 | Family |
| I [auth L] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
| I [auth L] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| I [auth L] | IPR023333 | Proteasome B-type subunit | Family |
| I [auth L] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| I [auth L] | IPR000243 | Peptidase T1A, proteasome beta-subunit | Family |
| J [auth M] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
| J [auth M] | IPR023333 | Proteasome B-type subunit | Family |
| J [auth M] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| J [auth M] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| K [auth N] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
| K [auth N] | IPR023333 | Proteasome B-type subunit | Family |
| K [auth N] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| K [auth N] | IPR016295 | Proteasome subunit beta 4 | Family |
| K [auth N] | IPR001353 | Proteasome, subunit alpha/beta | Family |
L [auth C], N [auth D] | IPR016050 | Proteasome beta-type subunit, conserved site | Conserved Site |
L [auth C], N [auth D] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
L [auth C], N [auth D] | IPR000426 | Proteasome alpha-subunit, N-terminal domain | Domain |
L [auth C], N [auth D] | IPR050115 | Proteasome_alpha | Unknown |
L [auth C], N [auth D] | IPR023332 | Proteasome alpha-type subunit | Family |
L [auth C], N [auth D] | IPR001353 | Proteasome, subunit alpha/beta | Family |
| M [auth CA] | IPR016024 | Armadillo-type fold | Homologous Superfamily |
| M [auth CA] | IPR032430 | Proteasome activator Blm10, middle HEAT repeats region | Domain |
| M [auth CA] | IPR032372 | Proteasome activator Blm10, N-terminal | Domain |
| M [auth CA] | IPR055455 | Proteasome activator complex subunit 4-like, HEAT repeat-like | Domain |
| M [auth CA] | IPR035309 | Proteasome activator complex subunit 4 | Family |
| M [auth CA] | IPR021843 | Proteasome activator complex subunit 4, C-terminal domain | Domain |
| O [auth E] | IPR033812 | Proteasome subunit alpha5 | Family |
| O [auth E] | IPR000426 | Proteasome alpha-subunit, N-terminal domain | Domain |
| O [auth E] | IPR029055 | Nucleophile aminohydrolases, N-terminal | Homologous Superfamily |
| O [auth E] | IPR050115 | Proteasome_alpha | Unknown |
| O [auth E] | IPR023332 | Proteasome alpha-type subunit | Family |
| O [auth E] | IPR001353 | Proteasome, subunit alpha/beta | Family |
P [auth a], Q [auth b] | IPR013886 | PI31 proteasome regulator, C-terminal | Domain |