SNCA and Parkinson disease: A total of 133 variants were found (complete list in Supplementary Table II); 94 were in PD/parkinsonism genes (72 were in “classic” PD genes GBA1, PRKN, PINK1, DJ1, SNCA, LRRK2, VPS13C), 21 in “research PD genes”, and 18 in genes related to other movement disorders.