UAS regulatory sequences drive expression of a short inverted repeat.
Expression of Arpc4HMS02568 under the combined control of the Scer\GAL4otu.T:Hsim\VP16, Scer\GAL4nos.PG and Scer\GAL4nos.UTR.T:Hsim\VP16 drivers leads to defective egg chambers with increased number of cells which appear to be the result of defective cell adhesion.