This family of proteins is found in viruses. Proteins in this family are approximately 210 amino acids in length. There is a conserved NNT sequence motif. These proteins are structural envelope proteins in viruses. This is the beta barrel C-terminal domain. There is a protruding N-terminal domain which completes the proteins. Three of four envelope proteins in Shrimp white spot syndrome virus share sequence homology with each other and are present in this family - VP24, VP26 and VP28. VP19 is the other major envelope protein but shares no sequence homology with the other proteins. These proteins are essential for entry into cells of the crustacean host.
This superfamily of proteins is found in viruses. Proteins in this superfamily are approximately 210 amino acids in length. There is a conserved NNT sequence motif. These proteins are structural envelope proteins in viruses. This is thebeta barrel C-terminal domain. There is a protruding N-terminal domain which completes the proteins. Three of four envelope proteins in Shrimp white spot syndrome virus (WSSV) share sequence homology with each other and are present in this superfamily - VP24, VP26 and VP28. VP19 is the other major envelope protein but shares no sequence homology with the other proteins. These proteins are essential for entry into cells of the crustacean host. Structurally, the WSSV envelope protein consists of a β-sandwich composed of nine strands in two sheets with a greek-key topology.
