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Fig. 6. Dynamic changes in GAL4-LBD activation patterns in larval fat bodies at
the onset of metamorphosis. As expected, GAL4-USP is activated in larval
fat bodies by the 20E pulse at puparium formation. By contrast, the DHR3,
DHR38 and HNF4 ligand sensors are active in the larval fat bodies of feeding
third instar larvae and show reduced activation after pupariation.