TABLE 5.
Comparison of amino acid sequences of HAs and NAs of representative viruses from southern China
| Virus | Genotype | RBSa
|
NA deletion (aa) | Connecting peptide | |
|---|---|---|---|---|---|
| 226 | 228 | ||||
| Qa/HK/G1/97 | A0 | L | G | 45-46 | R-S-S-R |
| Dk/HK/Y280/97 | B0 | L | G | 62-64 | R-S-S-R |
| Dk/HK/Y439/97 | Q | G | A-S-N-R | ||
| Dk/HK/289/78 | Q | G | A-S-N-R | ||
| Qa/ST/243/00 | B1 | L | G | R-S-S-R | |
| Qa/ST/1318/00 | B2 | Q | G | 62-64 | R-S-S-R |
| Qa/ST/782/00 | A0 | L | G | R-S-S-R | |
| Qa/ST/2061/00 | A0 | L | G | R-S-R-R | |
| Qa/ST/1551/02 | A0 | M | G | R-S-S-R | |
| Qa/ST/3851/02 | A3 | Q | G | R-S-S-R | |
| Qa/ST/3008/03 | A3 | Q | G | 50-55 | R-S-S-R |
| Qa/ST/11195/05 | A3 | Q | G | 38-39 | R-S-S-R |
a
Amino acid at the receptor binding site (RBS).