FIG. 2.
Genome organization of NV and MNV-1. Cleavage sites in NV and MNV-1 are indicated by open arrows, and the amino acids surrounding the cleavage site are also shown (4, 43, 45; Sosnovtsev et al., unpublished). The subgenomic RNA is shown below the genomic RNA. The presence of a viral protein linked to genomic and subgenomic RNA (VPg) is predicted, but not proven, for noroviruses.