UASt regulatory sequences drive expression of Hsap\AR coding sequences carrying a polyglutamine-tract of 73 residues and two amino acid substitutions (K632A and K633A) that alter dihydrotestosterone-induced nuclear translocation.
Expression of Hsap\ARQ73.K632A.K633A.Scer\UAS in the developing eye under the control of Scer\GAL4GMR.PF has no effect on development, even in the presence of dihydrotestosterone.