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VP6 UP-SB37 protein structure (brown) aligned with proteins (blue) from human (a) and pig RVC isolates (b); VP6 UP-SB21 protein structure (brown) aligned with proteins (blue) from bovine (c), human (d), and pig RVC isolates (e). RMSD value indicates how well the structure alignment is, and TM score indicates the relatedness between two structures.
