Query/reference Pairwise amino-acid identity (%) SARS-CoV-2 BatRaTG13 SARS-CoV-1 MERS OC43 HKU1 229E NL63 Fragment region of spike S2 SARS-Co-V2 100.00 SB SB SB SB SB SB SB BatRaTG13 99.40 100.00 SB SB SB SB SB SB SARS 93.10 92.50 100.00 SB SB SB SB SB MERS 39.00 39.00 39.00 100.00 SB SB SB SB OC43 39.00 39.00 38.40 51.20 100.00 SB SB SB HKU1 32.70 32.70 30.80 50.60 68.40 100.00 SB SB 229E 30.80 30.20 32.10 31.50 29.70 30.40 100.00 SB NL63 30.80 30.20 30.20 32.10 31.60 33.50 64.20 100.00 Full spike protein SARS-CoV-2 100.00 SB SB SB SB SB SB SB BatRaTG13 97.70 100.00 SB SB SB SB SB SB SARS-CoV-1 77.80 78.20 100.00 SB SB SB SB SB MERS 35.40 35.40 35.20 100.00 SB SB SB SB OC43 37.30 37.10 36.90 39.50 100.00 SB SB SB HKU1 35.20 35.30 35.00 39.00 67.00 100.00 SB SB 229E 41.70 41.50 41.80 41.80 43.50 43.50 100.00 SB NL63 36.30 36.20 36.20 35.40 39.70 37.80 64.70 100.00