A Sce genomic fragment comprising chr3R sequences 27680208-27683747 (Release 6), contained within a removable FRT cassette that also contains a " UAS:GFP " and w marker. A S77N mutation has been introduced, which is analogous to the p.S82N variant observed in "gnomAD" affecting the same residue as the p.R70H variant in human RNF2 that is associated with a neurodevelopmental disorder.