A 2115 base pair fragment from the flanking non-coding or intronic region of Ir7b is fused upstream of a Drosophila synthetic core promoter (DSCP) followed by sequence encoding a GAL4 driver.
Positive GRASP (GFP reconstitution across synaptic partners) signals between vertical system neurons labelled with ScerGAL4VT058488 and lobula plate intrinsic neurons LPi4-3 labelled with EcollexAGMR20D01 were observed.