, Capsid protein VP1
Also Known as
Capsid protein self assembles to form an icosahedral capsid with a T=3 symmetry, about 38 nm in diameter, and consisting of 180 capsid proteins. A smaller form of capsid with a diameter of 23 nm might be capsid proteins assembled as icosahedron with T=1 symmetry. The capsid encapsulate the genomic RNA and VP2 proteins. Attaches virion to target cells by binding histo-blood group antigens present on gastroduodenal epithelial cells., Soluble capsid protein may play a role in viral immunoevasion. Homodimerizes, then multimerizes. Binds to histo-blood group antigens at surface of target cells.