18.3kb genomic fragment ( X:7935666..7953967 , release 6 genome), which encompasses Ubr3 (and the nested l(1)G0193 gene).
Rescue fragment is a 18.3 kb genomic fragment containing the Ubr3 gene.
Ubr3+t18.3 rescues Ubr3A
Ubr3+t18.3 rescues Ubr3B
Ubr3+t18.3 fully rescues the lethality of Ubr3A or Ubr3B hemizygous mutants.