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Variants in the 3'UTR of SNCA do not affect miRNA-433 binding and alpha-synuclein expression.


ABSTRACT: Alpha-synuclein (SNCA) is a major risk gene for Parkinson's disease (PD) and increased SNCA gene dosage results in a parkinsonian syndrome in affected families. Regulatory regions relevant for SNCA expression include the 3' untranslated region (UTR), which among other regulatory elements contains several micro-RNA-binding sites. Interestingly, variants located in the 3' region of SNCA have been associated with PD in two genome-wide association studies. To test whether private mutations in this region contribute to PD, we sequenced the 3'UTR of SNCA in 1285 PD patients and 1120 age/sex-matched healthy controls. We found two rare variants, the one corresponding to the single nucleotide polymorphism rs145304567 and the novel variant c.*1004_1008delTTTTT. Although rs145304567 affects the putative-binding site of microRNA (miRNA) -433, the allele distribution was similar in PD patients and controls, and the expression of SNCA mRNA was not related to the genotype. Furthermore, a regulatory effect of miRNA-433 on SNCA expression levels was not detected.

SUBMITTER: Schmitt I 

PROVIDER: S-EPMC3499742 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature

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Variants in the 3'UTR of SNCA do not affect miRNA-433 binding and alpha-synuclein expression.

Schmitt Ina I   Wüllner Ullrich U   van Rooyen Jan Pierre JP   Khazneh Hassan H   Becker Julian J   Volk Alexander A   Kubisch Christian C   Becker Tim T   Kostic Vladimir S VS   Klein Christine C   Ramirez Alfredo A  

European journal of human genetics : EJHG 20120523 12


Alpha-synuclein (SNCA) is a major risk gene for Parkinson's disease (PD) and increased SNCA gene dosage results in a parkinsonian syndrome in affected families. Regulatory regions relevant for SNCA expression include the 3' untranslated region (UTR), which among other regulatory elements contains several micro-RNA-binding sites. Interestingly, variants located in the 3' region of SNCA have been associated with PD in two genome-wide association studies. To test whether private mutations in this r  ...[more]

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2016-12-01 | GSE68302 | GEO