UASt regulatory sequences drive expression of hh which has been mutated to carry the C85S amino acid replacement. This is expected to result in a protein which can be processed by autoproteolytic cleavage and modified at the C-terminal end by the addition of cholesterol, but which cannot undergo palmitoylation at the N-terminal end.
Ectopic expression of hhC85S.Scer\UAS.cGa, under the control of Scer\GAL4unspecified in hhAC first instar larvae induces only type-2 cuticle, and no type 3 cuticle.
hhC85S.Scer\UAS.cGa expressing cells do not display any membrane staining.
Approximately 80% of wing discs containing hhC85S.Scer\UAS.cGa flip-out clones (under the control of Scer\GAL4Scer\FRT.Rnor\CD2.Act5C)display anterior compartment outgrowth.
Expression of hhC85S.Scer\UAS.cGa, under the control of Scer\GAL4unspecified in dispS037707 mutant embryos, some type 2, but no type 3 cuticle is formed.
hhC85S.UAS.cGa/Scer\GAL469B partially rescues hhAC
Naked cuticle formation in hhAC/hhAC embryonic cuticle is rescued by hhC85S.Scer\UAS; Scer\GAL469B, and the denticle belts formed are almost normal (row 2 is abnormal, and rows 5 and 6 are often incomplete).