A 3962 base pair fragment from the flanking non-coding or intronic region of dpp is fused upstream of a Drosophila core synthetic promoter (DSCP) that is followed by sequence encoding a GAL4 driver.
ScerGAL4GMR19E03 drives strong expression in the adult midgut circular muscle; expression is not as strong as that of ScerGAL4GMR19C03. ScerGAL4GMR19E03 also drives expression in terminal filaments and in germarium cap cells in the germarium.