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Updated: Jul 15, 2025

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Long-read sequencing resolves a complex structural variant in PRKN Parkinson's disease.
Kensuke Daida1,2,3, Manabu Funayama3,4, Kimberley J Billingsley5
1Integrative Neurogenomics Unit, Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA.
Parkinson's disease (PD) is often caused by PRKN mutations. This study identified a large 7Mb inversion in PRKN using long-read sequencing, revealing a novel cause for young-onset PD.
Area of Science:
- Genomics
- Human Genetics
- Molecular Biology
Background:
- Parkinson's disease (PD) is frequently linked to mutations in the *PRKN* gene, particularly in young-onset and autosomal recessive forms.
- The *PRKN* gene resides within FRA6E, a common fragile site, making it susceptible to structural variations.
- Complex structural variants, such as inversions within *PRKN*, are rarely reported, suggesting potential uncharacterized pathogenic mechanisms.
Conclusions:
- This study reports the first large 7Mb inversion with breakpoints located outside the *PRKN* gene.
- Emphasizes the critical role of long-read whole-genome sequencing in uncovering complex structural variants for diagnosing unresolved cases of young-onset Parkinson's disease.
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