A 2474bp fragment from immediately upstream of the Ir41a start codon is fused upstream of sequence encoding a GAL4 driver.
ScerGAL4Ir41a.2474 is expressed in the olfactory receptor neuron Ir41a that innervates the antennal coeloconic sensillum ac2 and projects to an unidentified antennal lobe glomerulus.
Scer\GAL4Ir41a.2474/Ir76bUAS.cZa partially rescues Ir76b1