UASt regulatory sequences drive expression of drl lacking the Wnt inhibitory factor (WIF) domain (drl sequence consists of the first 60 nucleotides of the coding region fused to nucleotides 472-1830 of the coding region).
drlΔWIF.UAS/Scer\GAL4repo.PU fails to rescue drl2
Expression of drlΔWIF.Scer\UAS under the control of Scer\GAL4repo.PU does not rescue the antennal lobe defects of drl2 adults.