A 157-bp genomic fragment from the region immediately 5' to the Ilp3 ORF regulates expression of a GAL4 driver.
ScerGAL4Ilp3.PC drives expression in larval dorsomedial neurosecretory cell. GFP reconstitution across synaptic partners (GRASP) shows extensive connections to EcollexAGMR19B09 positive neurons.