Interestingly, the GG genotype of rs356182, which has been associated with a tremor-dominant, slower-progressing form of Parkinson's, is also associated with lower levels of SNCA expression in the cerebellum but not in any other brain regions including substantia nigra, caudate, and frontal cortex (Cooper et al., 2017). The gene discussed is SNCA; the disease is Parkinsonism.