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Fig. 4. DH31-R expression in the principal cells of Malpighian tubules. Malpighian
tubules from individual progeny of a c724::GAL4 cross to
UAS::lacZ were double stained with antibodies for CG17415 and
ß-galactosidase (center). Note the specific labeling of the stellate
cells (left, arrow) with the anti-ß-gal antibody and the complementary
labeling in the principal cells (right, arrow) of the tubules with
anti-CG17415.