Alpha-synuclein and Parkinson's disease: implications from the screening of more than 1,900 patients
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Data on the frequency of alpha-synuclein mutations in Parkinson's disease (PD) are limited. Screening the entire coding region in 1,921 PD patients with denaturing high performance liquid chromatography and subsequent sequencing we only detected silent mutations (g.2654A>G, g.10151G>A, and g.15986A>T) and the c.209G>A substitution corresponding to the p.A53T mutation. These results demonstrate that mutations in the alpha-synuclein gene are rare and suggest that other factors contribute to alpha-synuclein aggregation in the majority of PD patients.