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. 2020 Aug 4:1–8. doi: 10.1080/07391102.2020.1802338

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Figure 5. — S1 protein structure and accumulated feature importance. (A) Residue sequence with tertiary structure in S1 subunit, referenced to the released structure in the prefusion conformation (Wrapp et al., 2020). NTD (blue), N-terminal domain; RBD (green), receptor-binding domain; SD1 and SD2 (orange), subdomains. The sequence starts with residue Ace 26 to Thr 676. (B-C) The position of top 20 important residues are shown in red color. Accumulated tertiary structure importance in chain B and chain C are shown in numbers, respectively.