CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 3 | Alpha Beta | 
|   | 3.90 | Alpha-Beta Complex | 
|   | 3.90.209 | Hemagglutinin (Ha1 Chain); Chain: A; domain 1 | 
|   | 3.90.209.20 | Haemagglutinin, alpha/beta domain, HA1 chain | 
Domain Context
CATH Clusters
| Superfamily | 3.90.209.20 | 
| Functional Family | 
Enzyme Information
UniProtKB Entries (2)
| Q9WFX3 | HEMA_I18A0 Influenza A virus (A/Brevig Mission/1/1918(H1N1)) Hemagglutinin | 
| Q9WFX4 | Q9WFX4_9INFA Influenza A virus (A/New_York/1/18(H1N1)) Hemagglutinin | 
PDB Structure
| PDB | 5VMJ | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | Determinant of receptor-preference switch in influenza hemagglutinin. Virology | 
