Excision of the progenitor insertion (that is inserted 100 bp upstream of the Oga ATG start site), removing 657 bp of the Oga gene including the promoter, first exon, and a portion of the second exon. This is predicted to remove 171 amino acids at the N terminus of the protein sequence, corresponding to over half of the predicted O-GlcNAcase domain including nearly all of the catalytically important residues. Transcript levels are reduced to near zero at the deleted locus, though the rest of the gene is transcribed at levels comparable with wild type - therefore it is possible that a truncated protein containing an intact C-terminal domain, including the pseudo-histone acetyltransferase domain, is still made.
Estimated boundaries of a 657 bp deletion reported to start upstream of Oga and remove 171 amino acids of the protein.
Ogadel.1 homozygous mutants are viable and fertile but the females display semi-penetrant oogenesis defect and lay significantly fewer eggs per day when mated with either Ogadel.1 mutant or wild-type male. The females have smaller degenerate ovaries compared to wild-type.
Ogadel.1/Df(3R)ED10838 as well as Ogadel.1/Df(3R)ED10845 mutant flies show normal fertility.
Ogadel.1 is rescued by Scer\GAL4Act.PU/OgaUAS.cKa.Tag:HA
Ogadel.1 is rescued by Scer\GAL4nanos.PU/OgaUAS.cKa.Tag:HA
Ogadel.1 is rescued by Scer\GAL4Act.PU/OgaUAS.cKa.Tag:HA
Expression of OgaScer\UAS.cKa.T:Ivir\HA1 under the control of either Scer\GAL4Act.PU or Scer\GAL4nos.PU rescues the impaired oogenesis as well as defective ovary morphology characteristic for Ogadel.1 homozygous females - the number of eggs laid by Ogadel.1 mutant females ectopically expressing OgaScer\UAS.cKa.T:Ivir\HA1 is even higher than in wild-type.