The 824bp GMR57C10 fragment (a nSyb enhancer) drives expression of the wild-type Gba1b coding sequence (minigene comprised of exons 1-9 including signal sequence, omitting introns and UTRs).
Gba1bGMR57C10 rescues Gba1bΔ1/Df(3R)GBA1ΔTT