Two amino acid replacements (S88E and S91E) have been introduced into grhUAS.cKa.
Flies expressing grh2E.Scer\UAS in the epidermis under the control of Scer\GAL4e22c survive to adulthood.
Scer\GAL4e22c/grh2E.UAS partially rescues grhIM
Expression of grh2E.Scer\UAS in the epidermis under the control of Scer\GAL4e22c partially rescues the cuticle and head skeleton defects seen in grhIM embryos.
Expression of grh2E.Scer\UAS in the epidermis under the control of Scer\GAL4e22c rescues the defects in epidermal barrier integrity seen in stage 17 grhIM homozygous embryos. Epidermal barrier regeneration following wounding is also rescued.