UAS regulatory sequences drive expression of Tag:HA-tagged caup, in which the homeodomain (amino acid replacement N279A) and the IRO-box (amino acid replacements K459A and K461A) have been mutated (amino acid replacements K459A and K461A).
Expression of caupHD2.IRO-box.Scer\UAS.T:Ivir\HA1 under the control of Scer\GAL4salm.EPv has no effect on wing size.