Outline of the P1 RNAs. A schematic representation of the P1 genome is presented at the top. Schematic representations of the P1 RNAs are shown. ~ ~ ~ indicates polyA. The numbers at both ends of each transcript indicate the first and last nucleotides of each transcript. The coding sequence of each transcript is shown in bold, bright colour, and their nt coordinates are indicated in the middle of the transcripts. The 5′ → 3′ direction is indicated by the arrow.