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[Preprint]. 2021 Sep 9:rs.3.rs-871118. [Version 1] doi: 10.21203/rs.3.rs-871118/v1

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Figure 8. — Key residues involved in essential hydrogen bonds at the interfaces between SARS-CoV/SARS-CoV-2 RBDs and hACE2 RBD with the frequency above 80%. (A) SARS-CoV S protein single chain binds to hACE2; (B) A closeup view of (A) at the binding interface; (C) Labelled key residues that form essential hydrogen bonds (frequency over 80%) at the interface; (D) SARS-CoV-2 S protein single chain binds to hACE2; (E) A closeup view of (D) at the binding interface; (F) Labelled key residues that form essential hydrogen bonds (frequency over 80%) at the interface.