Fig. 1 Construction of bicistronic T7 expression structure
(A) Monocistronic and bicistronic T7 expression structure. The bicistronic T7 expression system contains T7 promoter, 5’UTR and its original SD motif (SD1), fore-cistron sequence, the second SD sequence (SD2), and downstream target gene EGFP. (B) Construction process of bicistronic T7 expression plasmid.