TABLE 5.
Nucleotide identity within and between genotypes
| Comparison | % Nucleotide identity (mean ± SD)a |
|||
|---|---|---|---|---|
| IRES | P1 | N terminus of VP1 | VP1/2A | |
| Strains within: | ||||
| Genotype I | 97.6 ± 0.3 | 94.2 ± 0.4 | 94.0 ± 0.6 | 94.4 ± 1.0 |
| Genotype IIb | 98.7 ± 0.2 | 96.2 ± 0.3 | 96.0 ± 0.5 | 96.6 ± 0.7 |
| Genotype III | 97.2 ± 0.5 | 91.6 ± 0.5 | 90.8 ± 0.9 | 91.3 ± 1.5 |
| All genotypes together | 95.4 ± 0.5 | 87.9 ± 0.5 | 88.6 ± 0.9 | 85.3 ± 1.6 |
| Genotypes: | ||||
| I vs II | 95.6 ± 0.7 | 85.9 ± 0.8 | 87.3 ± 1.3 | 82.6 ± 2.5 |
| II vs III | 92.2 ± 1.0 | 80.9 ± 0.9 | 81.8 ± 1.4 | 75.5 ± 2.7 |
| I vs III | 91.9 ± 0.7 | 81.2 ± 0.9 | 82.4 ± 1.4 | 74.9 ± 2.7 |
a
Computed with MEGA software for clinical and reference sequences.
b
For the comparison of strains within genotype II, the following numbers of sequences were used: 14 IRES, 14 P1, 16 VP1 N-terminal, and 16 VP1/2A sequences.