Robust expression of transgenes in Drosophila melanogaster
Lidsky, P. V.; Dmitriev, S. E.; Andino, R.
Show abstract
Drosophila is a classic experimental system used in fundamental and biopharmaceutical research. Manipulating gene expression in the larvae and adult flies can facilitate basic and translational studies. Here we report a method for robust transgene overexpression in Drosophila melanogaster. This approach is compatible with the UAS/Gal4 gene expression system. The improved expression involves a gene expression cassette that prevents transgenic mRNA transcript degradation by the nonsense-mediated RNA decay pathway. The protection is mediated by CrPV and DCV IRES sequences that apparently encode cryptic polyadenylation sites and NMD inhibitors. Stabilization of the transgene mRNA results in a >40-fold increase in its levels.
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