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冠状病毒ORF1ab的氨基酸相似性
Amino acid similarities of ORF1ab among different coronaviruses (%)
| Sequence | RaTG13 | CoVZC45 | CoVZXC21 | SARS | MERS |
| SARS-CoV-2 | 98.5 | 95.6 | 95.2 | 86.1 | 45.4 |
| RaTG13 | - | 95.4 | 94.9 | 85.9 | 45.4 |
| CoVZC45 | - | - | 98.0 | 87.0 | 45.5 |
| CoVZXC21 | - | - | - | 86.7 | 45.2 |
| SARS | - | - | - | - | 45.3 |
