UAS regulatory sequences drive expression of a short inverted repeat.
Expression of CTCFGL00266 results in: very slight rough eye phenotype (with the Scer\GAL4ey.PH driver) and occasional ectopic venation at the posterior crossvein (with Scer\GAL4en.PU). Scer\GAL4Act5C.PI-driven expression is lethal; no overt adult phenotype is observed with either Scer\GAL4GMR.PF or Scer\GAL4nub.PK.