All S and T residues in putative rl phosphorylation sites in grhUAS.cKa have been replaced with A.
Flies expressing grhPanA.Scer\UAS in the epidermis under the control of Scer\GAL4e22c survive to adulthood.
grhPanA.UAS/Scer\GAL4e22c partially rescues grhIM
Expression of grhPanA.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 grhPanA.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. However epidermal barrier regeneration following wounding is only partially rescued.