7B2Q
Cryo-EM structure of complement C4b in complex with nanobody B12
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
B | SCOP2B Superfamily | Terpenoid cyclases/Protein prenyltransferases | 8042441 | 3001024 | 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) |
---|---|---|---|---|---|---|---|---|
A | F_UNCLASSIFIED | e7b2qA1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: F_UNCLASSIFIED | ECOD (1.6) |
A | PF01835 | e7b2qA4 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: PF01835 | ECOD (1.6) |
A | PF07703 | e7b2qA6 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: PF07703 | ECOD (1.6) |
A | PF17789 | e7b2qA5 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: PF17789 | ECOD (1.6) |
A | PF17791 | e7b2qA3 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: PF17791 | ECOD (1.6) |
A | PF21145 | e7b2qA2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: PF21145 | ECOD (1.6) |
B | PF22661 | e7b2qB4 | A: beta sandwiches | X: jelly-roll | H: Spermadhesin, CUB domain (From Topology) | T: Spermadhesin, CUB domain | F: PF22661 | ECOD (1.6) |
B | PF00207 | e7b2qB2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: PF00207 | ECOD (1.6) |
B | PF07678 | e7b2qB1 | A: alpha superhelices | X: Repetitive alpha hairpins | H: alpha/alpha toroid (From Topology) | T: alpha/alpha toroid | F: PF07678 | ECOD (1.6) |
C | PF07677 | e7b2qC1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Common fold of diphtheria toxin/transcription factors/cytochrome f | F: PF07677 | ECOD (1.6) |
D | PF07686 | e7b2qD1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: PF07686 | ECOD (1.6) |
SAbDab Antibody Annotation SAbDab Database Homepage
Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
---|---|---|---|---|---|
Heavy Chain | IGHV1 | - | complement c4 gamma chain | complement c4 alpha chain | SAbDab (2024-06-07) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF21145 | Complement C4, MG1 domain (C4_MG1) | Complement C4, MG1 domain | Complement component C4 is a non-enzymatic component of C3 and C5 convertases and essential for the propagation of the classical complement pathway. It covalently binds to immunoglobulins and immune complexes and enhances the solubilization of immune ... | Domain | |
PF17791 | Macroglobulin domain MG3 (MG3) | Macroglobulin domain MG3 | This entry corresponds to the MG3 domain found in complement components C3, C4 and C5. | Domain | |
PF01835 | MG2 domain (MG2) | MG2 domain | This is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes [1]. Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. How ... | Domain | |
PF07703 | Alpha-2-macroglobulin bait region domain (A2M_BRD) | Alpha-2-macroglobulin bait region domain | Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and spe ... | Domain | |
PF17789 | Macroglobulin domain MG4 (MG4) | Macroglobulin domain MG4 | This domain is MG4 found in complement C3 and C5 proteins. | Domain | |
PF00207 | Alpha-2-macroglobulin family (A2M) | Alpha-2-macroglobulin family | - | Family | |
PF07678 | A-macroglobulin TED domain (TED_complement) | A-macroglobulin TED domain | - | Repeat | |
PF07677 | A-macroglobulin receptor binding domain (A2M_recep) | A-macroglobulin receptor binding domain | This family includes the receptor binding domain region of the alpha-2-macroglobulin family. | Domain | |