Dystonia with parkinsonism includes DRD [DYT5, tyrosine hydroxylase (TH), and sepiapterin reductase (SPR)], dopamine agonist-responsive dystonia, rapid-onset dystonia parkinsonism (DYT12), and early-onset dystonia with parkinsonism (DYT16). Here, TH is linked to Rapid-onset dystonia-parkinsonism.