A 1115 base pair fragment from the flanking non-coding or intronic region of Ddc is fused upstream of a Drosophila core synthetic promoter (DSCP) that is followed by sequence encoding a GAL4 driver.
A FLP/FRT intersectional strategy shows expression of EcollexATrpA1-AB-lexA in larval TrpA1 BLC, BLP and VAC neurons when combined with ScerGAL4GMR60F07.