Figure 4

Comparison of the structural features of FAST proteins in aquareoviruses. (A) The hydrophobic characters of NS16 and NS22 were predicted by ProScale according to the algorithm of Kyte and Doolittle, with a window of nine residues. Amino acids residues with positive scores are hydrophobic and negative are hydrophilic. The numbers at the bottom indicate amino acid position. (B) Predicted structural motifs contained in FAST proteins of aquareoviruses. Highly conserved residues are marked by a black background. Motifs are marked with a black line. MYR, myristoylation consensus sequence; TM, transmembrane domain; HP, hydrophobic patch; PB, polybasic region; RPH, regions rich in arginine, proline and histidine.