Number of expected and observed positions with different numbers of missense changes
| Substitutions per position | 0 | 1 | 2 | 3 | 4 | 5 | 6 | Total | χ2 | Rate constant* |
|---|---|---|---|---|---|---|---|---|---|---|
| *Average amino acid substitution rate constants are given in substitutions/position/year. Multiplying these rates by 1730×106 years will result in the substitution frequencies given in the text. | ||||||||||
| Observed | 137.0 | 230.0 | 422.0 | 624.0 | 376.0 | 74.0 | 0.0 | 1863 | ||
| Model 1 Expected | 36.6 | 239.1 | 584.6 | 647.5 | 307.8 | 46.8 | 0.7 | 1863 | 383.6 | 2.3×10−9 |
| Model 2 Expected | 152.8 | 160.1 | 480.3 | 644.3 | 362.0 | 62.4 | 1.1 | 1863 | 49.7 | |
| (Class 1) | 133.0 | − | − | − | − | − | − | 133 | 0.0 | |
| (Class 3) | 19.8 | 160.1 | 480.3 | 644.3 | 362.0 | 62.4 | 1.1 | 1730 | 2.6×10−9 | |
| Model 3 Expected | 139.4 | 225.5 | 431.5 | 610.5 | 382.7 | 72.4 | 1.3 | 1863 | 2.3 | |
| (Class 2) | 127.1 | 111.1 | 36.8 | 5.7 | 0.4 | 0.0 | 0.0 | 281 | 0.5×10−9 | |
| (Class 3) | 12.3 | 114.4 | 394.7 | 604.8 | 382.3 | 72.4 | 1.3 | 1582 | 2.8×10−9 | |