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Fig. 2 | Respiratory Research

Fig. 2

From: SARS coronavirus 2: from genome to infectome

Fig. 2

Schematic presentation of the SARS-CoV-2 genome Structure. SARS-CoV-2 has a spherical structure. The virus has an outer lipid envelope, covered with spike glycoprotein. The SARS-CoV-2 represents a typical Betacoronavirus genome organisation. The full-length RNA genome comprises of approximately 29,903 nucleotides and has a replicase complex (comprised of ORF1a and ORF1b) at the 5′UTR. The ORF1a encodes for nsp1–nsp10, while ORF1b encodes for nsp1–nsp16. Four genes that encode for the Structural proteins: Spike gene, Envelope gene, Membrane gene, Nucleocapsid gene and a poly (A) tail at the 3′UTR. The accessory genes are distributed in between the structural genes

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