Table 3 Amino acid sequences of specific sites in the HA, NA, and PB2 proteins of 22 H9N2 AIVs
Virus | RBSa | HA cleavage site | NA deletion | PB2 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
183 | 190 | 226 | 227 | 228 | 38-39 | 46-50 | 63-65 | 627 | 701 | ||
A/Turkey/Wisconsin/1/66 | H | E | Q | Q | G | PAVSSR↓GLF | NO | NO | NO | E | D |
A/chicken/Beijing/1/94 | N | V | Q | Q | G | PARSSR↓GLF | NO | NO | NO | E | D |
A/quail/Hong Kong/G1/97 | H | E | L | Q | G | PARSSR↓GLF | YES | NO | NO | E | D |
A/chicken/Hong Kong/G9/97 | N | A | L | Q | G | PARSSR↓GLF | NO | NO | NO | E | D |
A/duck/Hong Kong/Y280/97 | N | T | L | Q | G | PARSSR↓GLF | NO | NO | NO | E | D |
A/duck/Hong Kong/Y439/97 | H | E | Q | Q | G | PAASNR↓GLF | NO | NO | NO | E | D |
A/Chicken/Korea/38349-p96323/96 H9N2 | H | E | Q | Q | G | PAASYR↓GLF | NO | NO | NO | E | D |
A/Hong Kong/1073/99 | H | E | L | Q | G | PARSSR↓GLF | YES | NO | NO | E | D |
A/guinefowl/HongKong/NT101/2003 | N | A | L | Q | G | PARSSR↓GLF | NO | NO | YES | E | D |
A/shorebird/Delaware/249/2006 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/northern shoveler/Interior Alaska/8BM3470/2008 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/egret/Hunan/1/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C2032/2011 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C2123/2011 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C2148/2011 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C2149/2011 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C2150/2011 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C2203/2011 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C3109/2011 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4296/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4316/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4317/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4326/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4327/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4329/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4429/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/C4430/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/PC2539/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/PC2540/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/PC2553/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/PC2559/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/PC2560/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/PC2562/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |
A/wild waterfowl/Dongting/PC2574/2012 | H | E | Q | Q | G | PAASDR↓GLF | NO | NO | NO | E | D |