Functional association of the parkin gene promoter with idiopathic Parkinson's disease

Author: West A.B.  

Publisher: Oxford University Press

ISSN: 1460-2083

Source: Human Molecular Genetics, Vol.11, Iss.22, 2002-10, pp. : 2787-2792

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Abstract

Loss-of-function mutations in the parkin gene were first identified in autosomal recessive juvenile parkinsonism (AR-JP). Subsequently, parkin mutations were found in many early-onset patients with Parkinson's disease (PD) (<45 years="" at="" onset).="" we="" hypothesized="" that="">parkin gene expression also may contribute to the age-associated risk of idiopathic PD (>50 years at onset). Two single-nucleotide polymorphisms within the parkin core promoter have been identified and assessed. We show one of the variants, -258 T/G, is located in a region of DNA that binds nuclear protein from human substantia nigra in vitro and functionally affects gene transcription. Furthermore, the -258 T/G polymorphism is genetically associated with idiopathic PD, as assessed in a large population-based series of cases and controls. Our results further implicate the parkin gene in the development of Parkinson's disease.

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