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Figure 2


Fig. 2. A compact promoter fragment is sufficient to generate a brk-like pattern. (A,B) A 580 bp fragment (L12) located ~3 kb upstream of the transcription start drives expression in (A) wing discs and (B) embryos. (C) Upregulation of Dpp signaling by expression of TkvA using en-Gal4, results in repression of the L12 reporter in the posterior compartment. (D) L12 is derepressed in shn- embryos.