ScerGAL4GSG3473 drives mifepristone-inducible expression primarily neuronally. Strong expression is observed in the ventral nerve cord in~20 lateral cells per hemisegment, ~25 ventral cells per hemisegment, and ~6 dorsal midline cells per hemisegment; these cells include A1-7 dorsal motor neurons. Expression is observed in lateral longitudinal processes in the DM and VL FasII axon tracts. Expression is oberved in a few cells in the brain. Expression is observed in chordotonal organs and in multidendritic neurons. Strong expression is observed at the neuromuscular junctions on most muscle fibers; signal is localized to type Is and Ib boutons, and weakly to type II boutons. Expression is observed in tracheal cells. Weak to moderate uninduced expression is oberved in a subsert of CNS cells.