ScerGAL4Gr59d.4.1 drives expression in larval gustatory receptor neuron of the epiphysis DP1, where it is coexpressed with ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr93a.5, ScerGAL4Gr32a.3.7.PW, ScerGAL4Gr22b.5.8, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr39b.4.4, ScerGAL4Gr22d.3.1, ScerGAL4Gr39b.4.4, ScerGAL4Gr22e.2.5, ScerGAL4Gr28b.a.3, ScerGAL4Gr39a.b.1, and ScerGAL4Gr58b.1.
ScerGAL4Gr59d.4.1 drives expression in adult abdominal multidendritic neurons with with dorsal processes extending along the left-right axis, as well as in multidendritic neurons with lateral processes extending anteroposteriorly; these major processes have several protruding dendrites. Expression is also observed in projections to the abdominal ganglion.
ScerGAL4Gr59d.4.1 is expressed in gustatory neurons of 6 of the bitter-sensitive short labellar taste bristles.
ScerGAL4Gr59d.4.1 is expressed in some of the short bitter-sensitive sensilla of the labellum.
ScerGAL4Gr59d.4.1 drives expression in three neurons of the larval terminal organ. One of these neurons co-expresses ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr32a.3.7.PW, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr39a.b.1, ScerGAL4Gr59c.5.5, ScerGAL4Gr22a.4.2, ScerGAL4Gr22e.2.5, ScerGAL4Gr28b.a.3, ScerGAL4Gr28b.e.4.245, ScerGAL4Gr36b.0.9, ScerGAL4Gr36c.2.5, ScerGAL4Gr9a.6.3, ScerGAL4Gr58b.1, ScerGAL4Gr59a.1.5 and ScerGAL4Gr93b.5.3. Another neuron co-expresses ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr57a.6, ScerGAL4Gr47b.2 and ScerGAL4Gr94a.3.7. The third neuron expresses ScerGAL4Gr33a.4.7, ScerGAL4Gr66a.1.8 and ScerGAL4Gr39a.b.1. Expression of ScerGAL4Gr59d.4.1 is also detected in one neuron of the dorsal pharyngeal sense organ (DPS or epiphysis).