8OQI | pdb_00008oqi

Cryo-EM structure of the wild-type alpha-synuclein fibril.

• PDB DOI: https://doi.org/10.2210/pdb8OQI/pdb
• EM Map EMD-17111: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-04-12 Released: 2024-03-13 
• Deposition Author(s): Pesch, V., Reithofer, S., Ma, L., Flores-Fernandez, J.M., Oezduezenciler, P., Busch, Y., Lien, Y., Rudtke, O., Frieg, B., Schroeder, G.F., Wille, H., Tamgueney, G.
• Funding Organization(s): Michael J. Fox Foundation, Helmholtz Association

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Vaccination with structurally adapted fungal protein fibrils induces immunity to Parkinson's disease.

Pesch, V., Flores-Fernandez, J.M., Reithofer, S., Ma, L., Ozduzenciler, P., Busch, Y., Sriraman, A., Wang, Y., Amidian, S., Kroepel, C.V.M., Muller, L., Lien, Y., Rudtke, O., Frieg, B., Schroder, G.F., Wille, H., Tamguney, G.

(2024) Brain 147: 1644-1652

• PubMed: 38428032 
• DOI: https://doi.org/10.1093/brain/awae061
• Primary Citation Related Structures: 
  8OQI


• PubMed Abstract: 
  

  The pathological misfolding and aggregation of soluble α-synuclein into toxic oligomers and insoluble amyloid fibrils causes Parkinson's disease, a progressive age-related neurodegenerative disease for which there is no cure. HET-s is a soluble fungal protein that can form assembled amyloid fibrils in its prion state. We engineered HET-s(218-298) to form four different fibrillar vaccine candidates, each displaying a specific conformational epitope present on the surface of α-synuclein fibrils. Vaccination with these four vaccine candidates prolonged the survival of immunized TgM83+/- mice challenged with α-synuclein fibrils by 8% when injected into the brain to model brain-first Parkinson's disease or by 21% and 22% when injected into the peritoneum or gut wall, respectively, to model body-first Parkinson's disease. Antibodies from fully immunized mice recognized α-synuclein fibrils and brain homogenates from patients with Parkinson's disease, dementia with Lewy bodies and multiple system atrophy. Conformation-specific vaccines that mimic epitopes present only on the surface of pathological fibrils but not on soluble monomers, hold great promise for protection against Parkinson's disease, related synucleinopathies and other amyloidogenic protein misfolding disorders.

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Organizational Affiliation: 
• Institut für Biologische Informationsprozesse, Strukturbiochemie (IBI-7), Forschungszentrum Jülich, 52425 Jülich, Germany.
Department of Biochemistry and Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, AB T6G 2M8, Canada.
Department of Cell Biology and Anatomy, University of Calgary, Calgary, AB T2N 1N4, Canada.
Physics Department, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany.
Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB T6G 2M8, Canada.
Institut für Physikalische Biologie, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 10-mer - A10 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 144.76 kDa 
• Atom Count: 3,810 
• Modeled Residue Count: 560 
• Deposited Residue Count: 1,400 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-synuclein	A, B, C, D, E, F, G, H, I, J	140	Homo sapiens	Mutation(s): 0  Gene Names: SNCA, NACP, PARK1
UniProt & NIH Common Fund Data Resources
Find proteins for P37840 (Homo sapiens) Explore P37840  Go to UniProtKB:  P37840
PHAROS:  P37840 GTEx:  ENSG00000145335

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2024-03-13 
Deposition Author(s): Pesch, V., Reithofer, S., Ma, L., Flores-Fernandez, J.M., Oezduezenciler, P., Busch, Y., Lien, Y., Rudtke, O., Frieg, B., Schroeder, G.F., Wille, H., Tamgueney, G.

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Funding Organization	Location	Grant Number
Michael J. Fox Foundation	United States	MJFF-0098
Helmholtz Association	Germany	--

Revision History  

• Version 1.0: 2024-03-13
  Type: Initial release
  
• Version 1.1: 2024-05-15
  Changes: Database references