A 3705 base pair fragment from the flanking non-coding or intronic region of Dl is fused upstream of a Drosophila core synthetic promoter (DSCP) that is followed by sequence encoding a GAL4 driver.
ScerGAL4GMR24H01 drives expression in two neuromodulatory motor neurons (type II or type III, but not type I) per hemineuromere that innervate ventral muscles.