Table 3.
Hemagglutinin nucleotide and amino acid identity between A/Swine/IA/00239/04 (challenge virus) and A/Swine/IL/02450/08 (vaccine strain)
| Sequence length | % Identity | |
|---|---|---|
| HA (nt) | 1701 | 87·9 |
| HA (a.a) | 566 | 88·5 |
| HA1 (nt) | 980 | 87·8 |
| HA1 (a.a) | 327 | 87·5 |
| Antigenic site Aa | 24 | 79·2 |
| Antigenic site B | 22 | 72·7 |
| Antigenic site C | 33 | 75·8 |
| Antigenic site D | 48 | 87·5 |
| Antigenic site E | 34 | 82·4 |
| No antigenic sites | 166 | 94·0 |
Nt, nucleotide sequence; a.a, amino acid sequence.
a
Note that antigenic sites are not linear. Each position for each antigenic site previously described was compared between sequences used in this study.