Consists of a 3.5kb fragment of genomic DNA that contains the ORF of the gnu gene, with 1.6kb of 5' and 0.9kb of 3' sequences.
The rescue fragment is reported as a 3.5kb XbaI fragment containing the gnu ORF plus 1.6kb of 5' and 0.9kb of 3' sequences. The annotated rescue fragment extends from 1.6kb upstream of the AUG to a 3' XbaI site, due to the absence of a 5' XbaI site.