Fig. 3.

Predicted secondary structures for the 3′ UTRs of LV 64-7855 (a), M1146 (b) and 87-012 (c), representing three LV types. In order to simulate authentic viral RNA, two additional codons upstream from the 3′ UTR sequences and 10 adenosines of the poly-A tail were included in structure prediction analyses. SL domains I and II, depicted in the 3′ UTR structure of the 64-7855 strain, are designated according to previously established notation of structures predicted for LV 3′ UTR (Johansson et al., 2003). The stop codons of the polyprotein sequences are indicated by a boxed nucleotide triplet.