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. 2021 Apr 9;12(2):81–91. doi: 10.1007/s42485-021-00060-3

Table 2.

The percentages of identity and similarity of the SARS-CoV-2 proteins compared to those of SARS-CoV and RaTG13 (bat coronavirus)

Protein Identity % Similarity %
1 1 ab polyprotein SARS-CoV-2 and SARS-CoV 86.2 92.9
SARS-CoV-2 and RaTG13 98.5 99.1
2 Spike protein SARS-CoV-2 and SARS-CoV 76 86
SARS-CoV-2 and RaTG13 97.4 98.4
3 Orf3a (NS3) SARS-CoV-2 and SARS-CoV 72.4 85.1
SARS-CoV-2 and RaTG13 97.8 98.9
4 E protein SARS-CoV-2 and SARS-CoV 94.7 96.1
SARS-CoV-2 and RaTG13 100 100
5 M protein SARS-CoV-2 and SARS-CoV 90.5 96.4
SARS-CoV-2 and RaTG13 99.5 99.5
6 Orf6 (NS6) SARS-CoV-2 and SARS-CoV 68.9 88.5
SARS-CoV-2 and RaTG13 100 100
7 Orf7a (NS7a) SARS-CoV-2 and SARS-CoV 85.2 90.2
SARS-CoV-2 and RaTG13 97.5 99.2
8 Orf7b (NS7b) SARS-CoV-2 and SARS-CoV 85.4 90.2
SARS-CoV-2 and RaTG13 97.7 97.7
9 Orf8 (NS8) SARS-CoV-2 and SARS-CoV

38.9

44.4

77.8

66.7

SARS-CoV-2 and RaTG13 95 95.9
10 N protein SARS-CoV-2 and SARS-CoV 90.5 94.3