GBA1 and Parkinson disease: They were able to detect five known GBA1 mutations of R120W, N370S/N409S, L444P/L483P, RecNciI, and RecTL (del55/D409H/RecNciI); two novel GBA1 variants (c.-119 A/G and S(-35)N); as well as two risk variants, E326K and T369M, in PD patients.