ScerGAL4GSG3678 drives mifepristone-inducible expression primarily in neurons, glia and muscle. Moderate expression is observed in 3-5 cells at the dorsal midline of ventral nerve cord, as well as in lateral clusters of cells and scattered ventral cells. Strong expression is observed in a single neuron in each brain hemisphere, with weak expression in a few scattered cells. Expression is observed in chordotonal organs and in the peripheral glia of PNS nerves. Expression is observed in the transverse thoracic muscles, and in muscle attachment cells. There is moderate uninduced expression in the gut.