Table 2: Additional genes causing parkinsonism.

Gene Disease Refs MAPT Frontotemporal dementia with parkinsonism linked to chromosome 17 [30–38] ATXN2 Spinocerebellar ataxia type 2 and parkinsonism ATXN3 Spinocerebellar ataxia type 3 and parkinsonism SPG11 Hereditary spastic paraplegia and parkinsonism POLG1 Mitochondrial parkinsonism