Siegfried EChou TBPerrimon N2010-09-022018-07-062010-09-022018-07-061992-12http://ntur.lib.ntu.edu.tw//handle/246246/191991en-USWingless signaling acts through zeste-white 3, the Drosophila homolog of glycogen-synthase kinase-3, to regulate engrailed and establish cell fate.