Parkinson Disease 19a, Juvenile-Onset, is also known as parkinson disease 19b, early-onset, and has symptoms including muscle rigidity, tremor and bradykinesia. An important gene associated with Parkinson Disease 19a, Juvenile-Onset is DNAJC6 (DnaJ Heat Shock Protein Family (Hsp40) Member C6). Affiliated tissues include brain and brain-basal ganglia, and related phenotypes are intellectual disability and seizure