UASt regulatory sequences drive expression of an inverted repeat.
Expression of Tip60KK107642 under the control of Scer\GAL4Tub.PU from larval hatching onwards leads to defects in third instar salivary gland polytene chromosomes (smaller and with a thin and disorganized structure).
Expression under the control of Scer\GAL4ey.PU leads to small eyes.