Contained within genomic sequences extending from an EcoRV site at -1000 to a SalI site at +4200, including the ImpL2 gene and 1kb each of upstream and downstream flanking sequences.
The rescue fragment was reported to contain 1kb of upstream and 1kb of downstream sequences but was reported before the distant 5' exon was discovered. The position of the rescue fragment on the reference sequence was inferred by a FlyBase curator.
Completely rescues the viability of Df(3L)ems13/Df(3L)GN19 transheterozygotes.