UAS sequences drive expression of an inverted repeat of Mob2 amplified from EST clone RE65017 and corresponding to positions 476-921 of the Mob2 coding sequence.
Expression of Mob2dsRNA.Scer\UAS.IR2 using Scer\GAL4GMR.PF causes the normally regular array of ommatidia to disappear; a cavernous structure often appears in the centre of ommatidia and bristles project randomly on the eye.