An arm promoter fragment drives expression of a Mmus\Ctnnb1 cDNA.
Mmus\Ctnnb1arm.PW is a suppressor of oocyte phenotype of arm1
Mmus\Ctnnb1arm.PW is a suppressor of nurse cell phenotype of arm1
Mmus\Ctnnb1arm.PW is a suppressor of egg chamber phenotype of arm1
Mmus\Ctnnb1arm.PW is a suppressor of embryo phenotype of arm1
Mmus\Ctnnb1arm.PW is a suppressor of embryonic/first instar larval cuticle phenotype of arm2
Mmus\Ctnnb1arm.PW is a suppressor of cuticle phenotype of arm3
Mmus\Ctnnb1arm.PW, arm1 has embryonic/first instar larval cuticle phenotype
Mmus\Ctnnb1arm.PW, arm1 has embryonic head phenotype
Mmus\Ctnnb1arm.PW, arm3 has epidermis | ventral phenotype
The defects seen in the ovarioles of females with homozygous arm1 germline clones are completely rescued by Mmus\Catnbarm.PW provided maternally. These rescued females can lay eggs, and a small fraction of them (2%) are fertilised. The embryos produced from these eggs lack the head regions and parts of the cuticle, resembling strong zygotic shg mutants. Slightly rescues the phenotype of hemizygous arm1 embryos. Partially rescues the embryonic phenotype of homozygous arm3 embryos derived from females carrying homozygous arm3 germline clones when provided paternally. Partially rescues the cuticle phenotype of hemizygous embryos derived from females carrying homozygous arm2 germline clones when provided maternally.
Extracts from embryos carrying Mmus\Catnbarm.PW have been used in immunoprecipitation assays to investigate whether Mmus\Catnb protein interacts with α-Cat.