UASt regulatory sequences drive expression of the C-terminal domain of JIL-1 (amino acid residues 927-1207), tagged at the N-terminal end with lacI(DBD).
JIL-1CTD.Scer\UAS.T:Ecol\lacI largely restores polytene chromosome morphology in JIL-1z2 mutant animals, including that of the male X chromosome. Rescue of adult viability is 13.6%.