Fig 2.

Schematic of the MuAstV STL genome. Predicted open reading frames (ORFs) are represented by boxes and the 5′ and 3′ UTRs are represented by a black line. The genome coordinates are noted at the top. Gray boxes depict predicted domains based on the corresponding amino acid sequence. The black arrowheads indicate the conserved heptanucleotide frameshift motif (AAAAAAC). Human astrovirus 1 is depicted for comparison. PRO, trypsin-like peptidase domain; FS, frameshift signal; POL, RdRP; A(A)_n, 3′ poly(A) tail; nt, nucleotides.