CryoEM structure of bovine cytochrome bc1 with no ligand bound
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| F [auth S] | SCOP2B Superfamily | 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038272 | 3000797 | SCOP2B (2022-06-29) |
| P [auth F] | SCOP2B Superfamily | 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038272 | 3000797 | SCOP2B (2022-06-29) |
| H [auth U] | SCOP2B Superfamily | Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038275 | 3000806 | SCOP2B (2022-06-29) |
| R [auth H] | SCOP2B Superfamily | Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038275 | 3000806 | SCOP2B (2022-06-29) |
| G [auth T] | SCOP2B Superfamily | Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038274 | 3000770 | SCOP2B (2022-06-29) |
| Q [auth G] | SCOP2B Superfamily | Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038274 | 3000770 | SCOP2B (2022-06-29) |
| O [auth E] | SCOP2B Superfamily | ISP transmembrane anchor | 8038269 | 3000753 | SCOP2B (2022-06-29) |
| E [auth R] | SCOP2B Superfamily | ISP transmembrane anchor | 8038269 | 3000753 | SCOP2B (2022-06-29) |
| D [auth Q] | SCOP2B Superfamily | Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor | 8038268 | 3000762 | SCOP2B (2022-06-29) |
| D [auth Q] | SCOP2B Superfamily | Cytochrome c | 8038266 | 3000815 | SCOP2B (2022-06-29) |
| N [auth D] | SCOP2B Superfamily | Cytochrome c | 8038266 | 3000815 | SCOP2B (2022-06-29) |
| N [auth D] | SCOP2B Superfamily | Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor | 8038268 | 3000762 | SCOP2B (2022-06-29) |
| M [auth C] | SCOP2B Superfamily | a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038264 | 3000966 | SCOP2B (2022-06-29) |
| M [auth C] | SCOP2B Superfamily | Transmembrane di-heme cytochromes | 8038265 | 3000517 | SCOP2B (2022-06-29) |
| C [auth P] | SCOP2B Superfamily | a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8038264 | 3000966 | SCOP2B (2022-06-29) |
| C [auth P] | SCOP2B Superfamily | Transmembrane di-heme cytochromes | 8038265 | 3000517 | SCOP2B (2022-06-29) |
| L [auth B] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038263 | 3001831 | SCOP2B (2022-06-29) |
| L [auth B] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038260 | 3001831 | SCOP2B (2022-06-29) |
| B [auth O] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038260 | 3001831 | SCOP2B (2022-06-29) |
| B [auth O] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038263 | 3001831 | SCOP2B (2022-06-29) |
| T [auth J] | SCOP2B Superfamily | Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8037844 | 3000779 | SCOP2B (2022-06-29) |
| J [auth W] | SCOP2B Superfamily | Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) | 8037844 | 3000779 | SCOP2B (2022-06-29) |
| A [auth N] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038258 | 3001831 | SCOP2B (2022-06-29) |
| A [auth N] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038259 | 3001831 | SCOP2B (2022-06-29) |
| K [auth A] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038258 | 3001831 | SCOP2B (2022-06-29) |
| K [auth A] | SCOP2B Superfamily | LuxS/MPP-like metallohydrolase | 8038259 | 3001831 | 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) |
|---|---|---|---|---|---|---|---|---|
| F [auth S] | e6fo2S1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| P [auth F] | e6fo2F1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| H [auth U] | e6fo2U1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| R [auth H] | e6fo2H1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| G [auth T] | e6fo2T1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| Q [auth G] | e6fo2G1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| O [auth E] | e6fo2E1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| E [auth R] | e6fo2R1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| D [auth Q] | e6fo2Q1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| N [auth D] | e6fo2D1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| M [auth C] | e6fo2C1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| C [auth P] | e6fo2P1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| L [auth B] | e6fo2B1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| B [auth O] | e6fo2O1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| T [auth J] | e6fo2J1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| J [auth W] | e6fo2W1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| A [auth N] | e6fo2N1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) | |
| K [auth A] | e6fo2A1 | A: P-loop domains-like | X: Cas7-related | H: CRISPR-associated protein Cas7f/Csy3 | T: Polysacc_deac_1 | F: | ECOD (20:10:01) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| H [auth U], R [auth H] | PF02320 | Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge) | Ubiquinol-cytochrome C reductase hinge protein | The ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multienzyme complex [1]. This Pfam family represents the 'hinge' protein of the complex which is thought to mediate formation of the cytochrome c1 and cytochrome c ... | Domain |
| G [auth T], Q [auth G] | PF02939 | UcrQ family (UcrQ) | UcrQ family | - | Family |
| E [auth R], O [auth E] | PF02921 | Ubiquinol cytochrome reductase transmembrane region (UCR_TM) | Ubiquinol cytochrome reductase transmembrane region | - | Family |
| E [auth R], O [auth E] | PF00355 | Rieske [2Fe-2S] domain (Rieske) | Rieske [2Fe-2S] domain | The rieske domain has a [2Fe-2S] centre. Two conserved cysteines coordinate one Fe ion, while the other Fe ion is coordinated by two conserved histidines. In hyperthermophilic archaea there is a SKTPCX(2-3)C motif at the C-terminus. The cysteines in ... | Domain |
| D [auth Q], N [auth D] | PF02167 | Cytochrome C1 family (Cytochrom_C1) | Cytochrome C1 family | - | Family |
| C [auth P], M [auth C] | PF00032 | Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C) | Cytochrome b(C-terminal)/b6/petD | Domain | |
| C [auth P], M [auth C] | PF00033 | Cytochrome b/b6/petB (Cytochrome_B) | Cytochrome b/b6/petB | Domain | |
| B [auth O], L [auth B] | PF05193 | Peptidase M16 inactive domain (Peptidase_M16_C) | Peptidase M16 inactive domain | Peptidase M16 consists of two structurally related domains. One is the active peptidase, whereas the other is inactive. The two domains hold the substrate like a clamp [1]. | Domain |
| B [auth O], L [auth B] | PF00675 | Insulinase (Peptidase family M16) (Peptidase_M16) | Insulinase (Peptidase family M16) | - | Family |
| J [auth W], T [auth J] | PF05365 | Cytochrome b-c1 complex subunit 9 (UCR_UQCRX_QCR9) | Cytochrome b-c1 complex subunit 9 | - | Family |
| A [auth N], K [auth A] | PF05193 | Peptidase M16 inactive domain (Peptidase_M16_C) | Peptidase M16 inactive domain | Peptidase M16 consists of two structurally related domains. One is the active peptidase, whereas the other is inactive. The two domains hold the substrate like a clamp [1]. | Domain |
| A [auth N], K [auth A] | PF00675 | Insulinase (Peptidase family M16) (Peptidase_M16) | Insulinase (Peptidase family M16) | - | Family |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Membrane Protein Annotation: PDBTM PDBTM Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| PDBTM | Annotated as membrane protein by PDBTM |
Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| MemProtMD | Annotated as membrane protein by MemProtMD |














