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Schematic diagram showing the known topological and structural features of SARS-CoV accessory proteins. N-terminus (N) and C-terminus (C) are indicated. α-Helices are represented by blue columns and β-strands are represented by red arrows. The topological or structural features of p3b, p8a, and p8b are not well understood. Ribbon diagrams for p7a and p9b are adapted from Nelson et al. (2005) and Meier et al., 2006, respectively.
