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Atro is required for Notch target gene expression and Notch transcriptional activation. (A-D′) Knockdown of Atro by RNAi with en-Gal4 reduces Cut (A-B’) and Wingless (C-D′) protein levels in the posterior half of the wing disc. (E-F′) Knockdown of Atro by RNAi with en-Gal4 reduces Notch-lacZ expression in the posterior compartment of the wing disc. GFP marks the expression domain of en-Gal4. Scale bars: 50 μm.
