Figure 1

Maps of mRNAs and secondary structures of translation elements in the UTRs. fluc is the firefly luciferase ORF, flanked by viral UTRs. Above each construct is the secondary structure and sequence of the translation element in that UTR. TMV omega and crTMV elements are located in the 5′ UTR, the others are in the 3′ UTR. The numbers indicate the genomic coordinates of UTRs and the translation elements. Bold text indicate bases shown to base pair to the 5′ UTR.