UASp regulatory sequences drive expression of the cd coding sequence which is tagged at the C-terminal end with EGFP.
cdUASp.EGFP/Scer\GAL4GMR.PF rescues cdY459X
Expression of cdScer\UAS.P\T.T:Avic\GFP-EGFP under the control of Scer\GAL4GMR.PF rescues the reduction in ommochrome pigment levels that is seen in cdY459X flies.