Burial of the Polymorphic Residue 129 in Amyloid Fibrils of Prion Stop Mutants
2013 | journal article. A publication with affiliation to the University of Göttingen.
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Burial of the Polymorphic Residue 129 in Amyloid Fibrils of Prion Stop Mutants
Skora, L.; Fonseca-Ornelas, L.; Hofele, R. V.; Riedel, D.; Giller, K.; Watzlawik, J. & Schulz-Schaeffer, W. J. et al. (2013)
Journal of Biological Chemistry, 288(5) pp. 2994-3002. DOI: https://doi.org/10.1074/jbc.M112.423715
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- Authors
- Skora, Lukasz; Fonseca-Ornelas, Luis; Hofele, Romina V.; Riedel, Dietmar; Giller, Karin; Watzlawik, Jens; Schulz-Schaeffer, Walter J.; Urlaub, Henning; Becker, Stefan; Zweckstetter, Markus
- Abstract
- Misfolding of the natively alpha-helical prion protein into a beta-sheet rich isoform is related to various human diseases such as Creutzfeldt-Jakob disease and Gerstmann-Straussler-Scheinker syndrome. In humans, the disease phenotype is modified by a methionine/valine polymorphism at codon 129 of the prion protein gene. Using a combination of hydrogen/deuterium exchange coupled to NMR spectroscopy, hydroxyl radical probing detected by mass spectrometry, and site-directed mutagenesis, we demonstrate that stop mutants of the human prion protein have a conserved amyloid core. The 129 residue is deeply buried in the amyloid core structure, and its mutation strongly impacts aggregation. Taken together the data support a critical role of the polymorphic residue 129 of the human prion protein in aggregation and disease.
- Issue Date
- 2013
- Status
- published
- Publisher
- Amer Soc Biochemistry Molecular Biology Inc
- Journal
- Journal of Biological Chemistry
- ISSN
- 0021-9258