UASt regulates expression of a Ubr3 cDNA with a deletion of 222-292aa (the UBR domain) and with an N-terminal 3x Tag:FLAG tag.
Ubr3ΔUBR.UAS.Tag:FLAG/Scer\GAL4Act.PU fails to rescue Ubr31
Scer\GAL4Act.PU-mediated expression (via MARCM) does not rescue the increased apoptosis or small/rough eye phenotypes seen in Ubr31 eye disc/adult eye clones.