TABLE 2.
Comparison of vpu gene of Taiwanese env subtype A variant TWA2 with those of reference strains
| vpu subtype | Reference strain | % Similarity to TWA2a
|
||
|---|---|---|---|---|
| Full length | 5′ two-thirds | 3′ one-third | ||
| A | U455 | 75.6 | 71.8 | 83.1 |
| UG273 | 76.8 | 73.6 | 83.1 | |
| UG275 | 76.8 | 72.4 | 85.5 | |
| 92UG037 | 75.6 | 75.5 | 75.9 | |
| B | JRFL | 77.6 | 79.1 | 74.7 |
| C | ETH2220 | 72.1 | 76.7 | 75.9 |
| D | NDK | 79.3 | 79.1 | 79.5 |
| E | CM240X | 78.9 | 71.8 | 92.8 |
| F | BZ126A | 79.5 | 77.9 | 80.7 |
| G | HH8793 | 79.3 | 73.0 | 91.6 |
| SE6165 | 83.3 | 78.5 | 92.8 | |
| 92NG083 | 79.3 | 77.8 | 91.6 | |
| H | 90CR056 | 76.0 | 76.3 | 74.7 |
a
The values represents percent similarity in the nucleotide sequence. The similarity was calculated after excluding the insertion or deletion sequences. For most of the strains in the comparison, the regions of the full-length, 5′ two-thirds, and 3′ one-third of the vpu gene compared contain 246, 163, and 83 nucleotides, respectively.