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. 2020 Sep 28;165:18–43. doi: 10.1016/j.ijbiomac.2020.09.204

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Fig. 3 — Molecular detail of coronavirus S proteins and host cell ACE2 protein. a) Phylogenetic analysis of SARS-CoV and SARS-CoV-2 S proteins. b) Structural alignment and structure of RBD for the SARS-CoV and SARS-CoV-2 [33]. c) SARS-CoV-2 S protein cleavage sites and its interaction with the PD of ACE2 (Protein Data Bank ID: 6VYB and 1R42).