The human 26S proteasome at 3.9 A
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| G [auth T] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064054 | 3000131 | SCOP2B (2022-06-29) |
| U [auth G] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064054 | 3000131 | SCOP2B (2022-06-29) |
| T [auth F] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064060 | 3000131 | SCOP2B (2022-06-29) |
| F [auth S] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064060 | 3000131 | SCOP2B (2022-06-29) |
| S [auth E] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064022 | 3000131 | SCOP2B (2022-06-29) |
| E [auth R] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064022 | 3000131 | SCOP2B (2022-06-29) |
| R [auth D] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064004 | 3000131 | SCOP2B (2022-06-29) |
| D [auth Q] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064004 | 3000131 | SCOP2B (2022-06-29) |
| Q [auth C] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064036 | 3000131 | SCOP2B (2022-06-29) |
| C [auth P] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064036 | 3000131 | SCOP2B (2022-06-29) |
| P [auth B] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064014 | 3000131 | SCOP2B (2022-06-29) |
| B [auth O] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064014 | 3000131 | SCOP2B (2022-06-29) |
| N [auth 8] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064074 | 3000131 | SCOP2B (2022-06-29) |
| BA [auth 7] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8064074 | 3000131 | SCOP2B (2022-06-29) |
| M [auth Z] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8079175 | 3000131 | SCOP2B (2022-06-29) |
| AA [auth 6] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8079175 | 3000131 | SCOP2B (2022-06-29) |
| L [auth Y] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8079492 | 3000131 | SCOP2B (2022-06-29) |
| Z [auth 5] | SCOP2B Superfamily | Class II glutamine amidotransferases | 8079492 | 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) |
|---|---|---|---|---|---|---|---|---|
| W [auth 2] | Proteasome | e5l4g21 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| I [auth V] | Proteasome | e5l4gV1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| H [auth U] | Proteasome | e5l4gU1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| V [auth 1] | Proteasome | e5l4g11 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| G [auth T] | Proteasome | e5l4gT1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| U [auth G] | Proteasome | e5l4gG1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| T [auth F] | Proteasome | e5l4gF1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| F [auth S] | Proteasome | e5l4gS1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| S [auth E] | Proteasome | e5l4gE1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| E [auth R] | Proteasome | e5l4gR1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| R [auth D] | Proteasome | e5l4gD1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| D [auth Q] | Proteasome | e5l4gQ1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| Q [auth C] | Proteasome | e5l4gC1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| C [auth P] | Proteasome | e5l4gP1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| HA [auth J] | 26Sp45 | e5l4gJ3 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: 26Sp45 | ECOD (1.6) |
| HA [auth J] | KOG0652_2nd | e5l4gJ1 | A: alpha arrays | X: Histone-like | H: Histone-related | T: AAA+ ATPase lid domain | F: KOG0652_2nd | ECOD (1.6) |
| HA [auth J] | Sigma54_activat | e5l4gJ2 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma54_activat | ECOD (1.6) |
| P [auth B] | Proteasome | e5l4gB1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| B [auth O] | Proteasome | e5l4gO1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| GA [auth M] | KOG0652_1st | e5l4gM3 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: KOG0652_1st | ECOD (1.6) |
| GA [auth M] | KOG0652_3rd,KOG0652_2nd | e5l4gM2 | A: alpha arrays | X: Histone-like | H: Histone-related | T: AAA+ ATPase lid domain | F: KOG0652_3rd,KOG0652_2nd | ECOD (1.6) |
| GA [auth M] | Sigma54_activat | e5l4gM1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma54_activat | ECOD (1.6) |
| FA [auth L] | 26Sp45 | e5l4gL2 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: 26Sp45 | ECOD (1.6) |
| FA [auth L] | KOG0652_2nd | e5l4gL1 | A: alpha arrays | X: Histone-like | H: Histone-related | T: AAA+ ATPase lid domain | F: KOG0652_2nd | ECOD (1.6) |
| FA [auth L] | Sigma54_activat | e5l4gL3 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma54_activat | ECOD (1.6) |
| EA [auth K] | 26Sp45 | e5l4gK1 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: 26Sp45 | ECOD (1.6) |
| EA [auth K] | PRK03992 | e5l4gK3 | A: alpha arrays | X: Histone-like | H: Histone-related | T: AAA+ ATPase lid domain | F: PRK03992 | ECOD (1.6) |
| EA [auth K] | Sigma54_activat | e5l4gK2 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma54_activat | ECOD (1.6) |
| DA [auth I] | 26Sp45 | e5l4gI1 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: 26Sp45 | ECOD (1.6) |
| DA [auth I] | KOG0652_2nd | e5l4gI3 | A: alpha arrays | X: Histone-like | H: Histone-related | T: AAA+ ATPase lid domain | F: KOG0652_2nd | ECOD (1.6) |
| DA [auth I] | Sigma54_activat | e5l4gI2 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma54_activat | ECOD (1.6) |
| CA [auth H] | PRK03992 | e5l4gH3 | A: alpha arrays | X: Histone-like | H: Histone-related | T: AAA+ ATPase lid domain | F: PRK03992 | ECOD (1.6) |
| CA [auth H] | Sigma54_activat | e5l4gH2 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: P-loop domains-related | T: P-loop containing nucleoside triphosphate hydrolases | F: Sigma54_activat | ECOD (1.6) |
| N [auth 8] | Proteasome | e5l4g81 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| BA [auth 7] | Proteasome | e5l4g71 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| M [auth Z] | Proteasome | e5l4gZ1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| AA [auth 6] | Proteasome | e5l4g61 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| L [auth Y] | Proteasome | e5l4gY1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| Z [auth 5] | Proteasome | e5l4g51 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| K [auth X] | Proteasome | e5l4gX1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| Y [auth 4] | Proteasome | e5l4g41 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| X [auth 3] | Proteasome | e5l4g31 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| J [auth W] | Proteasome | e5l4gW1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| O [auth A] | Proteasome | e5l4gA1 | A: a+b four layers | X: Ntn/PP2C | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (1.6) |
| A [auth N] | Proteasome | e5l4gN1 | 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 |
|---|---|---|---|---|---|
| I [auth V], W [auth 2] | 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 |
| H [auth U], V [auth 1] | 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 |
| G [auth T], U [auth G] | 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 |
| G [auth T], U [auth G] | PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |
| F [auth S], T [auth F] | 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 |
| F [auth S], T [auth F] | PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |
| E [auth R], S [auth E] | 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 |
| E [auth R], S [auth E] | PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |
| D [auth Q], R [auth D] | 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 |
| D [auth Q], R [auth D] | PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |
| C [auth P], Q [auth C] | 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 |
| C [auth P], Q [auth C] | PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |
| HA [auth J] | PF16450 | Proteasomal ATPase OB C-terminal domain (Prot_ATP_ID_OB_C) | Proteasomal ATPase OB C-terminal domain | This is the C-terminal interdomain (ID) or oligonucleotide binding (OB) domain of proteasomal ATPase [1-2] | Domain |
| HA [auth J] | PF17862 | AAA+ lid domain (AAA_lid_3) | AAA+ lid domain | This entry represents the alpha helical AAA+ lid domain that is found to the C-terminus of AAA domains. | Domain |
| HA [auth J] | PF00004 | ATPase family associated with various cellular activities (AAA) (AAA) | ATPase family associated with various cellular activities (AAA) | AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2]. | Domain |
| B [auth O], P [auth B] | 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 |
| B [auth O], P [auth B] | PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |
| GA [auth M] | PF16450 | Proteasomal ATPase OB C-terminal domain (Prot_ATP_ID_OB_C) | Proteasomal ATPase OB C-terminal domain | This is the C-terminal interdomain (ID) or oligonucleotide binding (OB) domain of proteasomal ATPase [1-2] | Domain |
| GA [auth M] | PF17862 | AAA+ lid domain (AAA_lid_3) | AAA+ lid domain | This entry represents the alpha helical AAA+ lid domain that is found to the C-terminus of AAA domains. | Domain |
| GA [auth M] | PF00004 | ATPase family associated with various cellular activities (AAA) (AAA) | ATPase family associated with various cellular activities (AAA) | AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2]. | Domain |
| FA [auth L] | PF16450 | Proteasomal ATPase OB C-terminal domain (Prot_ATP_ID_OB_C) | Proteasomal ATPase OB C-terminal domain | This is the C-terminal interdomain (ID) or oligonucleotide binding (OB) domain of proteasomal ATPase [1-2] | Domain |
| FA [auth L] | PF17862 | AAA+ lid domain (AAA_lid_3) | AAA+ lid domain | This entry represents the alpha helical AAA+ lid domain that is found to the C-terminus of AAA domains. | Domain |
| FA [auth L] | PF00004 | ATPase family associated with various cellular activities (AAA) (AAA) | ATPase family associated with various cellular activities (AAA) | AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2]. | Domain |
| EA [auth K] | PF16450 | Proteasomal ATPase OB C-terminal domain (Prot_ATP_ID_OB_C) | Proteasomal ATPase OB C-terminal domain | This is the C-terminal interdomain (ID) or oligonucleotide binding (OB) domain of proteasomal ATPase [1-2] | Domain |
| EA [auth K] | PF17862 | AAA+ lid domain (AAA_lid_3) | AAA+ lid domain | This entry represents the alpha helical AAA+ lid domain that is found to the C-terminus of AAA domains. | Domain |
| EA [auth K] | PF00004 | ATPase family associated with various cellular activities (AAA) (AAA) | ATPase family associated with various cellular activities (AAA) | AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2]. | Domain |
| DA [auth I] | PF16450 | Proteasomal ATPase OB C-terminal domain (Prot_ATP_ID_OB_C) | Proteasomal ATPase OB C-terminal domain | This is the C-terminal interdomain (ID) or oligonucleotide binding (OB) domain of proteasomal ATPase [1-2] | Domain |
| DA [auth I] | PF17862 | AAA+ lid domain (AAA_lid_3) | AAA+ lid domain | This entry represents the alpha helical AAA+ lid domain that is found to the C-terminus of AAA domains. | Domain |
| DA [auth I] | PF00004 | ATPase family associated with various cellular activities (AAA) (AAA) | ATPase family associated with various cellular activities (AAA) | AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2]. | Domain |
| CA [auth H] | PF17862 | AAA+ lid domain (AAA_lid_3) | AAA+ lid domain | This entry represents the alpha helical AAA+ lid domain that is found to the C-terminus of AAA domains. | Domain |
| CA [auth H] | PF21236 | 26S proteasome regulatory subunit 7, OB domain (OB_PRS7) | 26S proteasome regulatory subunit 7, OB domain | This is the OB domain from 26S proteasome regulatory subunit 7 (PRS7, also known as PSMC2, Rpt1 or MSS1), a component of the 19S proteasome cap [1-5]. These are one of six ATPases of the regulatory particle that form a heterohexameric ring. This doma ... | Domain |
| CA [auth H] | PF00004 | ATPase family associated with various cellular activities (AAA) (AAA) | ATPase family associated with various cellular activities (AAA) | AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2]. | Domain |
| BA [auth 7], N [auth 8] | PF12465 | Proteasome beta subunits C terminal (Pr_beta_C) | Proteasome beta subunits C terminal | - | Family |
| K [auth X], Y [auth 4] | 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 |
| J [auth W], X [auth 3] | 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 |
| A [auth N], O [auth A] | 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 |
| A [auth N], O [auth A] | PF10584 | Proteasome subunit A N-terminal signature (Proteasome_A_N) | Proteasome subunit A N-terminal signature | - | Family |














