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(A) The spike (S) glycoprotein protein of severe acute respiratory syndrome coronavirus 2 (SARS CoV‐2). The red colored residue indicated the receptor binding domain (PDB Id: 6VXX). (B–D) Interacting amino acids of receptor‐binding domain of SARS‐CoV‐2 and binding domain of angiotensin‐converting enzyme 2 receptor of the host cells at different angles (adapted from Yan et al. [38 ])
