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Percent identity matrix of major proteins and domains of novel coronavirus SARS-CoV2 strain with other beta-CoVs obtained using CLUSTAL O (1.2.4).
| PROTEIN | SARS-CoV | MERS-CoV | HCoV HKU1 | HCoV OC43 |
|---|---|---|---|---|
| S (spike) | 97.71% | 32.79% | 30.50% | 31.26% |
| E (Envelope) | 96.00% | 36.00% | 28.00% | 20.00% |
| M (Membrane) | 89.59% | 39.27% | 35.29% | 38.74% |
| N (Nucleocapsid) | 85.41% | 48.47% | 34.28% | 35.20% |
| Receptor (ACE-2) binding domain | 74.41% | 18.75% | 24.44% | 22.83% |
| N-terminal domain | 52.55% | 21.67% | 21.49% | 20.26% |
