Identification of risk and age-at-onset genes on chromosome 1p in Parkinson disease

Sofia A. Oliveira, Yi Ju Li, Maher A. Noureddine, Stephan L Zuchner, Xuejun Qin, Margaret A Pericak-Vance, Jeffery M Vance

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Abstract

We previously reported a linkage region on chromosome 1p (LOD = 3.41) for genes controlling age at onset (AAO) in Parkinson disease (PD). This region overlaps with the previously reported PARK10 locus. To identify the gene(s) associated with AAO and risk of PD in this region, we first applied a genomic convergence approach that combined gene expression and linkage data. No significant results were found. Second, we performed association mapping across a 19.2-Mb region centered under the AAO linkage peak. An iterative association mapping approach was done by initially genotyping single-nucleotide polymorphisms at an average distance of 100 kb apart and then by increasing the density of markers as needed. Using the overall data set of 267 multiplex families, we identified six associated genes in the region, but further screening of a subset of 83 families linked to the chromosome 1 locus identified only two genes significantly associated with AAO in PD: the γ subunit of the translation initiation factor EIF2B gene (EIF2B3), which was more significant in the linked subset and the ubiquitin-specific protease 24 gene (USP24). Unexpectedly, the human immunodeficiency virus enhancer-binding protein 3 gene (HIVEP3) was found to be associated with risk for susceptibility to PD. We used several criteria to define significant results in the presence of multiple testing, including criteria derived from a novel cluster approach. The known or putative functions of these genes fit well with the current suspected pathogenic mechanisms of PD and thus show great potential as candidates for the PARK10 locus.

Original languageEnglish
Pages (from-to)252-264
Number of pages13
JournalAmerican Journal of Human Genetics
Volume77
Issue number2
DOIs
StatePublished - Aug 1 2005
Externally publishedYes

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Age of Onset
Parkinson Disease
Chromosomes
Genes
Eukaryotic Initiation Factor-2B
Ubiquitin-Specific Proteases
Virus Attachment
Peptide Initiation Factors
Chromosomes, Human, Pair 1
Information Storage and Retrieval
Single Nucleotide Polymorphism
Carrier Proteins
Parkinson Disease 10
HIV
Gene Expression

ASJC Scopus subject areas

  • Genetics

Cite this

Identification of risk and age-at-onset genes on chromosome 1p in Parkinson disease. / Oliveira, Sofia A.; Li, Yi Ju; Noureddine, Maher A.; Zuchner, Stephan L; Qin, Xuejun; Pericak-Vance, Margaret A; Vance, Jeffery M.

In: American Journal of Human Genetics, Vol. 77, No. 2, 01.08.2005, p. 252-264.

Research output: Contribution to journalArticle

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