Overexpression of PsaScer\UAS.cSa during embryonic and larval development using Scer\GAL4Ubi, Scer\GAL4da.G32, Scer\GAL4nos.UTR.T:Hsim\VP16, Scer\GAL4ptc-559.1 or Scer\GAL4hs.PB results in lethality. Overexpression of PsaScer\UAS.cSa in adult flies using Scer\GAL4Ubi or Scer\GAL4hs.PB has no detectable effect. Expression of PsaScer\UAS.cSa using Scer\GAL4GMR.PF results in abnormal eyes. Most ommatidia lack the setal bristle and contain highly melanised cells. Expression of PsaScer\UAS.cSa using Scer\GAL4ptc-559.1 during the pupal stage results in leg and wing defects. The metatarsus is often missing from the legs. The wings lack hair and show signs of melanisation along the antero-posterior border. Interruptions in the radial-medial crossvein connecting veins 3 and 4 are often seen.
PsaUAS.cSa, Scer\GAL4elav-C155 is a suppressor of short lived phenotype of Hsap\HTTQ93.ex1.UAS, Scer\GAL4elav-C155
Co-expression of PsaScer\UAS.cSa increases the lifespan of flies expressing Scer\GAL4elav-C155>Hsap\HTTQ93.ex1p.Scer\UAS.