A 2802 base pair fragment from the flanking non-coding or intronic region of Dscam is fused upstream of a Drosophila core synthetic promoter (DSCP) that is followed by sequence encoding a GAL4 driver.
ScerGAL4GMR28A04 drives expression in neuropil ensheathing glia in the adult brain and ventral nervous system; no expression is observed in the adult protocerebrum.