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. 2022 Apr 2;168:105512. doi: 10.1016/j.micpath.2022.105512

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Fig. 2 — Genome organization of SARS-CoV-2. Approximately 30 kb long viral genome comprises 10 open reading frames (ORFs) encoding 27 viral proteins. The ORF1ab encompasses about 67% of the total viral genome and encodes 16 non-structural proteins (nsps). Whereas the accessory and structural proteins are encoded by the remaining ORFs(adapted from Kim et al., 2020[116] with some modifications)