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. 2021 Nov 6;363(2):94–103. doi: 10.1016/j.amjms.2021.11.001

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© 2021 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

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Fig. 1 — Genome organization of SARS CoV-2 and its encoded proteins. The orf1ab gene constitutes two-thirds of the genome, encodes a total of 16 non-structural proteins (NSPs) within the pp1ab gene. The other third of SARS CoV-2 includes four genes that encode four structural proteins (S, M, E, N), and six accessory genes that encode six accessory proteins (orf3a, orf6, orf7a, orf7b, orf8, and orf10).