Allosteric couple between alpha rings of the 20S proteasome. 20S proteasome singly capped by PA26/E102A, C-terminus replaced by PAN C-terminus
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| DA [auth b] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| EA [auth c] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| FA [auth d] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| HA [auth f] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| IA [auth g] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| GA [auth e] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| CA [auth a] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| AA [auth Y] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| P [auth M] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| S [auth 2] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| T [auth H] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| U [auth V] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| V [auth I] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| W | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| X [auth J] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| Z [auth K] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| Y [auth X] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| R [auth N] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| Q [auth 1] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| O [auth Z] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| BA [auth L] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034254 | 3000131 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| C | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| G | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| E | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| D | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
| B | SCOP2B Superfamily | Class II glutamine amidotransferases | 8034248 | 3000131 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| DA [auth b] | Proteasome | e6utjb1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| EA [auth c] | Proteasome | e6utjc1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| FA [auth d] | Proteasome | e6utjd1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| HA [auth f] | Proteasome | e6utjf1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| IA [auth g] | Proteasome | e6utjg1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| GA [auth e] | Proteasome | e6utje1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| CA [auth a] | Proteasome | e6utja1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| AA [auth Y] | Proteasome | e6utjY1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| P [auth M] | Proteasome | e6utjM1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| S [auth 2] | Proteasome | e6utj21 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| T [auth H] | Proteasome | e6utjH1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| U [auth V] | Proteasome | e6utjV1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| V [auth I] | Proteasome | e6utjI1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| W | Proteasome | e6utjW1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| X [auth J] | Proteasome | e6utjJ1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| Z [auth K] | Proteasome | e6utjK1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| Y [auth X] | Proteasome | e6utjX1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| R [auth N] | Proteasome | e6utjN1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| Q [auth 1] | Proteasome | e6utj11 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| O [auth Z] | Proteasome | e6utjZ1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| BA [auth L] | Proteasome | e6utjL1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| I [auth P] | PA28_beta_1 | e6utjP1 | A: alpha bundles | X: Four-helical up-and-down bundle | H: Proteasome activator reg(alpha) (From Topology) | T: Proteasome activator reg(alpha) | F: PA28_beta_1 | ECOD (1.6) |
| K [auth R] | PA28_beta_1 | e6utjR1 | A: alpha bundles | X: Four-helical up-and-down bundle | H: Proteasome activator reg(alpha) (From Topology) | T: Proteasome activator reg(alpha) | F: PA28_beta_1 | ECOD (1.6) |
| L [auth S] | PA28_beta_1 | e6utjS1 | A: alpha bundles | X: Four-helical up-and-down bundle | H: Proteasome activator reg(alpha) (From Topology) | T: Proteasome activator reg(alpha) | F: PA28_beta_1 | ECOD (1.6) |
| M [auth T] | PA28_beta_1 | e6utjT1 | A: alpha bundles | X: Four-helical up-and-down bundle | H: Proteasome activator reg(alpha) (From Topology) | T: Proteasome activator reg(alpha) | F: PA28_beta_1 | ECOD (1.6) |
| N [auth U] | PA28_beta_1 | e6utjU1 | A: alpha bundles | X: Four-helical up-and-down bundle | H: Proteasome activator reg(alpha) (From Topology) | T: Proteasome activator reg(alpha) | F: PA28_beta_1 | ECOD (1.6) |
| J [auth Q] | PA28_beta_1 | e6utjQ1 | A: alpha bundles | X: Four-helical up-and-down bundle | H: Proteasome activator reg(alpha) (From Topology) | T: Proteasome activator reg(alpha) | F: PA28_beta_1 | ECOD (1.6) |
| H [auth O] | PA28_beta_1 | e6utjO1 | A: alpha bundles | X: Four-helical up-and-down bundle | H: Proteasome activator reg(alpha) (From Topology) | T: Proteasome activator reg(alpha) | F: PA28_beta_1 | ECOD (1.6) |
| A | Proteasome | e6utjA1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| C | Proteasome | e6utjC1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| G | Proteasome | e6utjG1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| F | Proteasome | e6utjF1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| E | Proteasome | e6utjE1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| D | Proteasome | e6utjD1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| B | Proteasome | e6utjB1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF00227 | Proteasome subunit (Proteasome) | Proteasome subunit | The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologues vary greatly in complexity ... | Domain | |
| PF02252 | Proteasome activator PA28, C-terminal (PA28_C) | Proteasome activator PA28, C-terminal | Proteasome activator 28 (PA28), also known as 11s regulator of REG, binds to the 20S proteasome and simulates peptidase activity in an ATP-independent manner. This entry represents a the C-terminal domain found in PA28 subunits, including PA28alpha/b ... | Domain | |
| PF00227 | Proteasome subunit (Proteasome) | Proteasome subunit | The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologues vary greatly in complexity ... | Domain | |
| PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |














