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. 2020 Sep 24;11(9):799. doi: 10.1038/s41419-020-02995-9

Fig. 5. The proteolytic cleavage site in the S-protein of the SARS-CoV and SARS-CoV-2 viruses.

Fig. 5

The protease recognition site (the arginines, R) is different in the two viruses. The arrows indicate the cleavage sites (modified from Hoffmann et al.)20.