UASt regulatory sequences drive expression of the "UBQ-8i" variant of Hsap\UBQLN1 (this variant lacks one Sti1-repeat due to the deletion of coding exon 8).
3 day old flies expressing Hsap\UBQLN1UBQ-8i.Scer\UAS under the control of Scer\GAL4GMR.PF have normal eye morphology. 18 day old flies show pronounced degeneration in the eye with vacuolation and cell loss, which is progressively worsened by 33 days after eclosion.
Flies expressing Hsap\UBQLN1UBQ-8i.Scer\UAS under the control of Scer\GAL4ey.PH have a range of cuticle outgrowths through the eye tissue.