Table 1.
Amino acid variations in the VP2 protein of different CPV types
| Amino acid variations at residuea | ||||||||
|---|---|---|---|---|---|---|---|---|
| 87 | 101 | 297 | 300 | 305 | 375 | 426 | 555 | |
| Nucleotide position | 3045–3047 | 3087–3089 | 3675–3677 | 3684–3686 | 3699–3701 | 3909–3911 | 4062–4064 | 4449–4451 |
| Codon observed | ATG (Met) TTG (Leu) | ATT (Ile) ACT (Thr) | TCT (Ser) GCT (Ala) | GCT (Ala) GGT (Gly) | GAT (Asp) TAT (Tyr) | AAT (Asn) GAT (Asp) | AAT (Asn) GAT (Asp) GAA (Glu) | GTA (Val) ATA (Ile) |
| CPV‐2 | Met | Ile | Ser | Ala | Asp | Asn | Asn | Val |
| CPV‐2a | Leu | Thr | Ser | Gly | Tyr | Asp | Asn | Ile |
| CPV‐2b | Leu | Thr | Ser | Gly | Tyr | Asp | Asp | Val |
| New CPV‐2b | Leu | Thr | Ala | Gly | Tyr | Asp | Asp | Val |
| New CPV‐2a | Leu | Thr | Ala | Gly | Tyr | Asp | Asn | Val |
| Asp‐300 (CPV‐2a/CPV‐2b) | Leu | Thr | Ala | Asp | Tyr | Asp | Asn Asp | Val |
| CPV‐2c | Leu | Thr | Ala | Gly | Tyr | Asp | Glu | Val |
aPositions are referred to the amino acid and nucleotide sequences of strain CPV‐b (GenBank accession no. M38245).