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Cartoon representation of SARS-CoV-2 nsp15 structure showing loops (green), β-sheets (yellow), and helices (red)(PDB 6VWW). SARS-CoV-2 nsp15 generates dimers of trimmers, which finally assembles into a hexamer where each subunit of nsp15 contains 10 α-helices and 21 β-strands.
