UASt regulatory sequences drive expression of mature length Oari\PrP (amino acid residues 25-231) encoding the naturally occurring "AHQ" polymorphic variant (Ala[136] Leu[141] His[154] Gln[171]). The protein is flanked at the N-terminal end by an insect secretion signal peptide and at the C-terminal end by the Oari\PrP glycosylphosphatidylinositol anchor signal sequence.
The expression of Oari\PrPAHQ.Scer\UAS under the control of Scer\GAL4elav-C155 results in a decrease in adult lifespan compared to controls.