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Structural organization of the 3′-UTR RNA structures within SARS-CoV-2. The two subpanel figures depict the two alternative structural forms that have been described: the extended bulged stem-loop (BSL) and the putative pseudoknot. The Hypervariable region (HVR) region, S2M region, and octanucleotide motif (ONM) motif are represented in light blue, orange, and green, respectively.
