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. 2021 Jan 22:1–15. doi: 10.1080/07391102.2021.1875050

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Figure 1. — Structural features of Nsp9 monomer and dimer. (a) Structure of Nsp9 monomer. This protein has one C-terminal α-helix associated with seven β strands. Loops L23 (formed between β4 and β5 strands), L45 (between β2 and β3 strands) and L7H1 (between the β7 strand and the α-helix) are indicated. (b) Structure of the Nsp9-dimer composed of A and B chains.