Table 2. Nucleotide and deduced amino acid differences in the prM-E genes of Mexican and Texas isolates compared to West Nile virus strain WN-NY99 (382-99).
| Strain | Nucleotide (amino acid) substitutions in prM and E genes (nt 466–2469)* |
||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 483 | 549 | 660 | 858 | 887 | 1074 | 1137 | 1179 | 1320 | 1356 | 1432 | 1442 | 1626 | 1656 | 1974 | 2328 | 2388 | 2392 | 2466 | |
| WN-NY99 (AF196835)† | C | U | C | C | U (Ile) | G | C | A | A | C | U (Ser) | U (Val) | C | U | C | C | C | G (Ala) | C |
| TM171-03 (AY371271) | U | ‡ | U | C (Thr) | U | C (Pro) | U | U | U | U | |||||||||
| MexNL-03 (AY426741) | C | U | G | U | C (Ala) | U | |||||||||||||
| NL-54 (Mosquito, MX) | U | G | C (Ala) | U | |||||||||||||||
| Human (Sonora, MX) | U | A | G | C (Ala) | C | U | U | ||||||||||||
| Harris Co., TX-1 (AY185906) | U | C (Ala) | A (Thr) | U | |||||||||||||||
*Nucleotide numbers correspond to WN-NY99; amino acid substitutions are in brackets. †GenBank accession number. ‡Blank entries indicate no nucleotide or amino acid substitutions.