A summary of side chain hydrogen bonding analysis between the two structural fragments generated by the hypothesized cleavage at the polybasic FCS of the S protein of SARS-CoV-2. In this table, the residue naming scheme is Chain ID_residue name_residue number, ∠ADH represents the angle formed by acceptor (A), donor (D) and hydrogen (H) (∠ADH). In this table, for residues A and B, one of them is to be located upstream (residue ID scriptsizeer than 681) of the polybasic FCS, while the other is to be located downstream (residue ID larger than 685) of the polybasic FCS.