Figure 5. Sequences and structural features of 3′ untranslated region (UTR) of the porcine sapeloviruses.

(A) The nucleotide sequences of the 3′ UTR were compared using the Clustal W methods. (B–D) Secondary and tertiary structures of 3′ UTR of strains KS04105, KS05151, KS055217 and YC2011 (B), strain V13 (C), and strain csh (D) were predicted by the CLC program. Proposed tertiary interactions between the loops of X and Z domains are shown by lines.