Fig. 7. IroRE2 mediates repression of ara/caup by Ush.
(A-A'') In ushVX22 null clones (absence of
green) IroRE2-lacZ (red) and ara/caup (blue)
(arrows) are derepressed. Loss of ush at the hinge has no effect
(arrowheads). (B-C') Overexpression of ush in clones
(green) downregulates IroRE2-lacZ (B,B') and
ara/caup (C,C') expression at the proximal-most lateral notum
(arrows). (D-D'') Downregulation of
IroRE2-lacZ (red) by overexpression of
UAS-tkvQD is still evident in clones of
ushVX22 mutant cells (green) (arrows).