The transgenic construct contains the human GBA gene under the direction of the CMV enhancer/chicken beta-actin promoter, rabbit B-globin intron sequence and the rabbit globin polyA site (pCAGEN) promoter. GBA was modified by site-directed mutagenesis (c.1448T>C) to harbor an leucine to proline mutation at residue 483 (described as L444P). (J:266060)