The GBA1-gene is responsible for encoding the lysosomal enzyme glucocerebrosidase and has an important role in Parkinson's disease (PD).1 GBA1 variant carriers have an increased risk for PD.2-6 In a biallelic state, GBA1 variants classified as mild or severe cause Gaucher's disease (GD), a rare lysosomal storage disorder.7 The E326K and T369M variants of GBA1, which do not cause GD, are known to serve as risk factors for PD.8-10 Parkinson's disease with a GBA1 variant (GBA-PD) is linked to a...
