ScerGAL4Gr22d.3.1 drives expression in larval gustatory receptor neuron of the epiphysis DP1, where it is coexpressed with ScerGAL4Gr66a.1.8, ScerGAL4Gr32a.3.7.PW, ScerGAL4Gr93a.5, ScerGAL4Gr22b.5.8, ScerGAL4Gr39a.a.3.4, ScerGAL4Gr39b.4.4, ScerGAL4Gr9a.6.3, ScerGAL4Gr33a.4.7, ScerGAL4Gr22e.2.5, ScerGAL4Gr28b.a.3, ScerGAL4Gr39a.b.1, ScerGAL4Gr58b.1, and ScerGAL4Gr59d.4.1.
ScerGAL4Gr22d.3.1 is expressed in gustatory neurons of 4 of the bitter-sensitive short labellar taste bristles.
ScerGAL4Gr22d.3.1 is expressed in only a few of the bitter-sensitive sensilla of the labellum.
ScerGAL4Gr22d.3.1 drives expression in one gustatory receptor neuron of the larval dorsal pharyngeal sense organ (DPS or epiphysis).