Structural polyprotein (PP) [Cleaved into: Precursor of VP2 (Pre-VP2); Capsid protein VP2; Structural peptide 1 (p1); Structural peptide 2 (p2); Structural peptide 3 (p3); Protease VP4 (EC 3.4.21.-) (Non-structural protein VP4) (NS); Capsid protein VP3]