Table 1.
Amino acid (italics; on top, right-hand side) and nucleotide substitution rates (per 100 residues) in a highly conserved region of open reading frame (ORF) 1b of the pol gene of 11 coronaviruses
| HEV | BCV | OC43 | MHV | SDAV | IBV | TCV | FIPV | TGEV | CCV | 229E | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HEV | 0.98 | 2.99 | 8.27 | 7.19 | 38.38 | 40.56 | 44.90 | 45.48 | 44.32 | 48.45 | |
| BCV | 2.54 | 1.98 | 8.27 | 7.19 | 38.38 | 40.56 | 43.75 | 44.32 | 43.18 | 48.45 | |
| OC43 | 3.21 | 3.33 | 9.01 | 7.91 | 38.38 | 40.56 | 44.90 | 44.90 | 44.32 | 48.45 | |
| MHV | 15.89 | 15.09 | 15.35 | 0.98 | 38.92 | 41.11 | 47.85 | 47.85 | 47.85 | 50.28 | |
| SDAV | 14.16 | 13.51 | 14.03 | 4.12 | 37.84 | 40.01 | 46.65 | 46.65 | 46.65 | 49.05 | |
| IBV | 49.50 | 49.08 | 48.25 | 49.50 | 47.01 | 3.00 | 45.68 | 46.27 | 45.68 | 47.46 | |
| TCV | 49.92 | 49.92 | 48.66 | 50.13 | 48.04 | 7.19 | 47.46 | 48.06 | 47.46 | 49.28 | |
| FIPV | 50.11 | 49.06 | 49.90 | 49.69 | 47.82 | 46.40 | 48.25 | 0.33 | 0.33 | 24.03 | |
| TGEV | 49.06 | 48.85 | 48.65 | 49.27 | 48.03 | 47.63 | 48.87 | 3.33 | 0.65 | 24.48 | |
| CCV | 48.23 | 47.82 | 48.03 | 49.27 | 47.00 | 47.22 | 49.92 | 4.01 | 4.58 | 24.48 | |
| 229E | 49.48 | 48.44 | 48.44 | 50.54 | 49.69 | 48.87 | 48.04 | 35.37 | 35.72 | 35.54 |