Predicted coding regions in TPCTV DNA. All open reading frames start with an ATG triplet. Their position and orientation are indicated by arrows within the circle. Red and blue triangles indicate the position and orientation of potential polyadenylation signals [(A/G)ATAA] and promoter regions [TATA(T/A)AA], respectively. The predicted hairpin structure with the nonanucleotide loop sequence is at position O.