Table 1. Amino acid differences between PB2 and PA in 2 influenza A(H7N9) viruses*.
| Virus |
PB2 |
|
PA | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 191 |
340 |
482 |
559 |
560 |
584 |
588 |
702 |
100 |
262 |
387 |
394 |
465 |
497 |
|||
| GD wild-type | E | K | R | T | I | I | V | R | V | K | I | D | V | R | ||
| AN/PB2-627E† | K | R | K | N | V | V | A | K | A | R | V | N | I | K | ||
*AN, A/Anhui/1/2013(H7N9); GD, A/Guangdong/17SF003/2016; PA, polymerase acidic; PB, polymerase basic. †This mutant possessed a K to E substitution at position 627 of PB2, but the other residues of PB2 and PA were identical to those of wild-type AN.