UASt regulates expression of a Ubr3 cDNA with a deletion of 1515-2219aa (the RING domain) and with an N-terminal 3x Tag:FLAG tag.
Scer\GAL4Act.PU/Ubr3ΔRing.UAS.Tag:FLAG rescues Ubr31
Scer\GAL4Act.PU-mediated expression (via MARCM) rescues the increased apoptosis and small/rough eye phenotypes seen in Ubr31 eye disc/adult eye clones.