Figure 3.

Structure of reovirus RNA. (A) The structure of a viral dsRNA genome segment is presented with the different 5′ and 3′-terminal structure and conserved sequences at both ends, as observed for mammalian orthoreoviruses. The structure of a typical mRNA is presented with the length of both 5′ and 3′ non-coding regions. (B) Schematic representation of the different possible capped and uncapped 5′-end on mRNA. (C) Schematic representation and nucleotide sequence at the two translational initiation sites on s1 and m3 mRNAs.