UASt regulatory sequences drive expression of the repressor domain of en fused to the zinc finger region of klu (the C-terminal portion of the protein). The fusion protein is tagged at the N-terminal end with Tag:HA.
external sensory organ precursor cell | somatic clone | increased number, with Scer\GAL4Act5C.PI
Expression of kluScer\UAS.T:Ivir\HA1,T:Rep-en under the control of Scer\GAL4Act5C.PI in clones in the wing disc promotes cells to adopt the sensory organ precursor cell fate.