From: Antiviral activity of stachyflin on influenza A viruses of different hemagglutinin subtypes
Virus |  | EC50(μM) | Amino acid position in HA2a | |||
---|---|---|---|---|---|---|
 |  |  | 37 | 51 | 85 | 107 |
rgWSN | Wild type | 0.02 | D | K | D | T |
 | rgR1 | >6.50 | N | -b | - | - |
 | rgR2 | >6.50 | - | R | - | - |
 | rgR3 | >6.50 | - | - | H | - |
 | rgR4 | >6.50 | - | - | - | I |