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Fig. 4. JNK signaling functions upstream of Rpr and Hid. (A-D) Control (A,C) or
irradiated (B,D) wing discs from rpr-11-lacZ (A,B) or en-Gal4
UAS-myc-Puc; rpr-11-lacZ (C,D) larvae. ß-Gal (red) and DNA
(blue). rpr-reporter is blocked by Myc-Puc expression. (E-H) Discs,
pucA251.1/+ (E,F) or
pucA251.1/hs-hid (G,H) four hours after heat
shock. (E,G) JNKREP (red) and DNA (blue). (F,H) JNKREP
alone from E,G, respectively. Neither heat shock alone nor heat
shock-hid induction strongly induces JNKREP.