The P{GalW} element in the P{GalW}S145 insertion has been replaced with a P{DA530inv} element, so that expression from the Scer\UAS regulatory sites in the P{DA530inv} element can drive Notum expression.
Animals expressing NotumDA530inv under the control of Scer\GAL4S168 have severely reduced wings and lack all wing margin structures. Expression of NotumDA530inv under the control of Scer\GAL4sd-S278 or Scer\GAL4dpp.blk1 results in a wing-to-notum transformation.