Cryo-EM structure of the T2SS secretin XcpQ from Pseudomonas aeruginosa
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| E [auth C] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| G [auth E] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| I [auth H] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| N [auth M] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| O [auth N] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| M [auth L] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| L [auth K] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| K [auth J] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| J [auth I] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| H [auth F] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| F [auth D] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| D [auth B] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| C [auth A] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| B [auth O] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | SCOP2B (2022-06-29) |
| A [auth G] | SCOP2B Superfamily | Secretin repeat domain-like | 8057216 | 3002387 | 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) |
|---|---|---|---|---|---|---|---|---|
| E [auth C] | Peptidase_S26 | e5wlnC1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| G [auth E] | Peptidase_S26 | e5wlnE1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| I [auth H] | Peptidase_S26 | e5wlnH1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| N [auth M] | Peptidase_S26 | e5wlnM1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| O [auth N] | Peptidase_S26 | e5wlnN1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| M [auth L] | Peptidase_S26 | e5wlnL1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| L [auth K] | Peptidase_S26 | e5wlnK1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| K [auth J] | Peptidase_S26 | e5wlnJ1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| J [auth I] | Peptidase_S26 | e5wlnI1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| H [auth F] | Peptidase_S26 | e5wlnF1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| F [auth D] | Peptidase_S26 | e5wlnD1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| D [auth B] | Peptidase_S26 | e5wlnB1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| C [auth A] | Peptidase_S26 | e5wlnA1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| B [auth O] | Peptidase_S26 | e5wlnO1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
| A [auth G] | Peptidase_S26 | e5wlnG1 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Peptidase_S26 | ECOD (develop294) |
Domain Annotation: CATH CATH Database Homepage
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF03958 | Bacterial type II/III secretion system short domain (Secretin_N) | Bacterial type II/III secretion system short domain | This is a short, often repeated, domain found in bacterial type II/III secretory system proteins. All previous NolW-like domains fall into this family. | Domain | |
| PF00263 | Bacterial type II and III secretion system protein (Secretin) | Bacterial type II and III secretion system protein | - | Family |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR050810 | Bacterial Secretion System Channel Protein | Family | |
| IPR005644 | NolW-like | Domain | |
| IPR004846 | Type II/III secretion system, secretin-like domain | Domain | |
| IPR038591 | NolW-like superfamily | Homologous Superfamily | |
| IPR049371 | GspD-like, N0 domain | Domain | |
| IPR004845 | Type II secretion system protein GspD, conserved site | Conserved Site | |
| IPR013356 | Type II secretion system protein GspD | Family | |
| IPR001775 | GspD/PilQ family | Family |
Membrane Protein Annotation: OPM OPM Database Homepage
| Chains | External Link | Type | Class | Superfamily | Family |
|---|---|---|---|---|---|
| OPM | Transmembrane | Beta-barrel transmembrane | Outer bacterial membrane secretin | Outer bacterial membrane secretion |
Membrane Protein Annotation: PDBTM PDBTM Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| PDBTM | Annotated as membrane protein by PDBTM |














