Volume 9, Number 11—November 2003
Research
Genetic Variation among Temporally and Geographically Distinct West Nile Virus Isolates, United States, 2001, 2002
C. Todd Davis*†, David W.C. Beasley*†, Hilda Guzman*†, Pushker Raj‡, Mary D’Anton‡, Robert J. Novak§, Thomas R. Unnasch¶, Robert B. Tesh*†, and Alan D.T. Barrett*†
Table 2
Nucleotide mutations in sequences of the E gene of 22 West Nile virus isolates obtained during 2001 and 2002 compared to WN-NY99a
| Strain | Envelope (1503 ntds) |
|||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 969 | 1038 | 1065 | 1071 | 1118 (E51) | 1137 | 1179 (E71) | 1192 (E76) | 1293 | 1356 | 1377 | 1442 (E159) | 1443 | 1554 | 1557 | 1581 | 1728 | 1830 | 2094 | 2154 | 2190 | 2392 (E476) | 2400 | 2466 | |
| WN-NY99 (AF196835) | C | U | C | U | C (Ala) | C | A (Lys) | A (Thr) | C | C | C | U (Val) | U | T | C | T | A | T | A | U | U | G (Ala) | U | C |
| Harris Co., TX (AY185906) | C | A (Thr) | U | |||||||||||||||||||||
| Harris Co., TX (AY185907) | U | U | C | U | ||||||||||||||||||||
| Nueces Co., TX - 1 | U | C | C | U | ||||||||||||||||||||
| Nueces Co., TX - 2 | U (Val) | U | U | C | U | |||||||||||||||||||
| Gregg Co., TX | C | C | U | |||||||||||||||||||||
| Tarrant Co., TX | C | C | U | |||||||||||||||||||||
| Wichita Co., TX | C | U | ||||||||||||||||||||||
| Randall Co., TX | U | C (Asn) | C | U | ||||||||||||||||||||
| El Paso Co., TX | C | U | ||||||||||||||||||||||
| Illinois - 1 | C | U | ||||||||||||||||||||||
| Illinois - 2 | C | U | C | C | U | |||||||||||||||||||
| Alabama - 1 | C | U | ||||||||||||||||||||||
| Alabama -2 | C | T | U | |||||||||||||||||||||
| Colorado | C | G | U | |||||||||||||||||||||
| Louisiana | ||||||||||||||||||||||||
| Galveston Co., TX-1 (AY185914) | U | G (Ala) | U | C | C | |||||||||||||||||||
| Galveston Co., TX-2 (AY185913) | U | G | U | C | C | |||||||||||||||||||
| Galveston Co., TX-3 | U | G | U | C | C | C | ||||||||||||||||||
| Jefferson Co., TX - 1 | U | G | U | C | C | |||||||||||||||||||
| Jefferson Co., TX - 2 | U | C | G | U | C | C | ||||||||||||||||||
| Jefferson Co., TX - 3 | U | G | U | C | C | |||||||||||||||||||
| Orange Co., TX | U | C | G | U | C | C | ||||||||||||||||||
*Nucleotide (nt) numbers correspond to those of WN-NY99 (GenBank accession no. AF196835); in brackets for individual residues are the deduced amino acid changes.f
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