UAS regulatory sequences drive expression of 100 pure repeats of a "protein-only" version of Zzzz\poly-GA using alternative codons to those found within the GGGGCC repeat.
Expression of Zzzz\poly-GAPO-100.Scer\UAS using Scer\GAL4GMR.PU has no phenotypic effect.
Expression of Zzzz\poly-GAPO-100.Scer\UAS in adult neurons using Scer\GAL4elav.Switch.PO (in combination with RU486 treatment) causes a late onset decrease in survival.