UAS regulatory sequences drive expression of ru tagged at the N terminal end with Avic\GFP and at the C terminal end with an endoplasmic reticulum retention signal (Tag:ER(KDEL)).
ruUAS.GFP.Tag:ER(KDEL)/Scer\GAL4MT14 fails to rescue ruPLLb
Expression of ruScer\UAS.T:Avic\GFP.T:Uuuu\KDEL in the R8 photoreceptors under the control of Scer\GAL4MT14 fails to rescue the lamina cartridge neuron differentiation defects seen in the eye discs of ruPLLb mutant third instar larvae.