Deletion of 499 nucleotides.
Photoreceptor axons do not project correctly in the optic lobe of bratK1771 eye-brain complexes in third instar larvae, while the photoreceptor cells themselves are appropriately specified.
bratK1771 is rescued by bratGMR.PB
bratGMR.PB rescues the visual system wiring phenotype of bratK1771 eye clones.