Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Amino acids that distinguish the 1918 strain from the avian clade
| Amino acid position | Amino acid in indicated strain:
|
||||
|---|---|---|---|---|---|
| 1918 | Human | Swine | Equine | Avian | |
| 16 | D | D | G | G | G |
| 33 | I | I | I | V | V |
| 100 | I | V | Ia | R | R |
| 136 | M | M | M/I | L | L |
| 283 | P | P | L | L | L |
| 313 | Y | Y | F | F | F |
A few strains have V at this position.
