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Amino acids at positions 271, 627, and 701 in the PB2 protein of swine H1N1 influenza viruses
| Amino acid at position 271 in PB2 | Total no. of viruses (lineage) | No. of viruses with amino acid: |
|
|---|---|---|---|
| Lysine (K) at position 627 | Asparagine (N) at position 701 | ||
| Alanine (A) | 197 (triple-reassortant and 2009/H1N1) | 0 | 0 |
| 2 (classical) | 2 | 0 | |
| 1 (Eurasian avian-like) | 0 | 1 | |
| Threonine (T) | 254 (classical) | 254 | 0 |
| 120 (Eurasian avian-like) | 0 | 117 | |
