CryoEM structure of influenza hemagglutinin A/Victoria/361/2011 in complex with cyno antibody 3B10
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| I [auth F] | C1-set_4 | e6wztF2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_4 | ECOD (1.6) |
| I [auth F] | V-set | e6wztF1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| F [auth D] | C1-set_4 | e6wztD2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_4 | ECOD (1.6) |
| F [auth D] | V-set | e6wztD1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| C [auth L] | C1-set_4 | e6wztL1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_4 | ECOD (1.6) |
| C [auth L] | V-set | e6wztL2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set | ECOD (1.6) |
| H [auth G] | V-set_8 | e6wztG2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| H [auth G] | C1-set_1 | e6wztG1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_1 | ECOD (1.6) |
| E | V-set_8 | e6wztE2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| E | C1-set_1 | e6wztE1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_1 | ECOD (1.6) |
| B [auth H] | V-set_8 | e6wztH2 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: V-set_8 | ECOD (1.6) |
| B [auth H] | C1-set_1 | e6wztH1 | A: beta sandwiches | X: Immunoglobulin-like beta-sandwich | H: Immunoglobulin-related | T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like | F: C1-set_1 | ECOD (1.6) |
| G [auth C] | Hemagglutinin_1st | e6wztC2 | A: beta sandwiches | X: jelly-roll | H: Viral protein domain (From Topology) | T: Viral protein domain | F: Hemagglutinin_1st | ECOD (1.6) |
| G [auth C] | Hemagglutinin_2nd | e6wztC1 | A: alpha bundles | X: Hemagglutinin HA2 chain (From Topology) | H: Hemagglutinin HA2 chain (From Topology) | T: Hemagglutinin HA2 chain | F: Hemagglutinin_2nd | ECOD (1.6) |
| D [auth B] | Hemagglutinin_1st | e6wztB1 | A: beta sandwiches | X: jelly-roll | H: Viral protein domain (From Topology) | T: Viral protein domain | F: Hemagglutinin_1st | ECOD (1.6) |
| D [auth B] | Hemagglutinin_2nd | e6wztB2 | A: alpha bundles | X: Hemagglutinin HA2 chain (From Topology) | H: Hemagglutinin HA2 chain (From Topology) | T: Hemagglutinin HA2 chain | F: Hemagglutinin_2nd | ECOD (1.6) |
| A | Hemagglutinin_1st | e6wztA1 | A: beta sandwiches | X: jelly-roll | H: Viral protein domain (From Topology) | T: Viral protein domain | F: Hemagglutinin_1st | ECOD (1.6) |
| A | Hemagglutinin_2nd | e6wztA2 | A: alpha bundles | X: Hemagglutinin HA2 chain (From Topology) | H: Hemagglutinin HA2 chain (From Topology) | T: Hemagglutinin HA2 chain | F: Hemagglutinin_2nd | ECOD (1.6) |
SAbDab Antibody Annotation SAbDab Database Homepage
| Chain | Chain Class | Chain Subclass | Chain Type | Antigen Name(s) | Provenance Source |
|---|---|---|---|---|---|
| C [auth L], F [auth D], I [auth F] | Light Chain | IGKV1 | Kappa | hemagglutinin | SAbDab (2025-12-05) |
| B [auth H], E, H [auth G] | Heavy Chain | IGHV4 | - | hemagglutinin | SAbDab (2025-12-05) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| A, D [auth B], G [auth C] | PF00509 | Haemagglutinin (Hemagglutinin) | Haemagglutinin | - | Family |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| A, D [auth B], G [auth C] | IPR001364 | Haemagglutinin, influenzavirus A/B | Family |
| A, D [auth B], G [auth C] | IPR008980 | Viral capsid/haemagglutinin protein | Homologous Superfamily |
| A, D [auth B], G [auth C] | IPR000149 | Haemagglutinin, influenzavirus A | Family |
| A, D [auth B], G [auth C] | IPR013828 | Haemagglutinin, HA1 chain, alpha/beta domain superfamily | Homologous Superfamily |














