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. 2020 Aug 25;78(6):ftaa042. doi: 10.1093/femspd/ftaa042

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© FEMS 2020.

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Figure 4. — Diagrammatic representation of functional domains of S protein in SAS-CoV-2. The SP, signal peptide; NTD, N-terminal domain; RBD, receptor-binding domain; FP, fusion peptide, HR1, heptad repeat 1; HR2, heptad repeat 2; TM, transmembrane domain; CP, cytoplasmic domain.