UASt regulatory sequences drive expression of an inverted repeat.
Expression under the control of Scer\GAL4pnr-MD237 results in semi-lethality before the pupal stage.
Expression under the control of Scer\GAL4pnr-MD237 results in planar polarity defects in the orientation of bristles of the notum in 40-50% of the Scer\GAL4pnr-MD237 expression domain.