A 4407 base pair fragment from the flanking non-coding or intronic region of hth 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 ScerGAL4GMR46F09 in ventrolateral protocerebrum projection neuron 1 when combined with EcollexAfru.P1.