Table 3. Percentage amino acid and nucleotide differences when comparing individual proteins of selected West Nile virus strains*.
| Strain | SA381/00 | H442 | SPU116/89 | SA93/01 |
|---|---|---|---|---|
| Capsid | ||||
| SA381/00 | ||||
| H442 | 0 | |||
| SPU116/89 | 0 | 0 | ||
| SA93/01 |
0 |
0 |
0 |
|
| Envelope | ||||
| SA381/00 | ||||
| H442 | 0.8 | |||
| SPU116/89 | 0.2 | 0.6 | ||
| SA93/01 |
0.2 |
0.6 |
0 |
|
| NS2A/B | ||||
| SA381/00 | ||||
| H442 | 0.6 | |||
| SPU116/89 | 0.3 | 0.8 | ||
| SA93/01 |
0.3 |
0.8 |
0 |
|
| NS4A/B | ||||
| SA381/00 | ||||
| H442 | 0.2 | |||
| SPU116/89 | 0.2 | 0.5 | ||
| SA93/01 |
0 |
0.2 |
0.2 |
|
| prM | ||||
| SA381/00 | ||||
| H442 | 0.6 | |||
| SPU116/89 | 0.6 | 0 | ||
| SA93/01 |
0.6 |
0 |
0 |
|
| NS1 | ||||
| SA381/00 | ||||
| H442 | 0.9 | |||
| SPU116/89 | 0.9 | 0 | ||
| SA93/01 |
1.1 |
0.3 |
0.3 |
|
| NS3 | ||||
| SA381/00 | ||||
| H442 | 0.8 | |||
| SPU116/89 | 0.6 | 0.5 | ||
| SA93/01 |
0.6 |
0.5 |
0 |
|
| NS5 | ||||
| SA381/00 | ||||
| H442 | 0.8 | |||
| SPU116/89 | 2.1 | 1.5 | ||
| SA93/01 | 1.9 | 1.3 | 2.0 | |
*prM, premembrane; NS, nonstructural.