UAS regulatory sequences drive expression of a mutant form of ed lacking the C-terminal PDZ-binding motif.
actomyosin | dorsal closure stage, with Scer\GAL4c381
Actomyosin cable formation is the dorsal-most epidermal cells is abolished when edΔP.Scer\UAS is expressed via Scer\GAL4c381 in the adjacent peripheral amnioserosa cells.