Lipidic alpha-synuclein fibril - polymorph L3A

Experimental Data Snapshot

  • Resolution: 2.76 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report

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The 3D structure of lipidic fibrils of alpha-synuclein.

Frieg, B.Antonschmidt, L.Dienemann, C.Geraets, J.A.Najbauer, E.E.Matthes, D.de Groot, B.L.Andreas, L.B.Becker, S.Griesinger, C.Schroder, G.F.

(2022) Nat Commun 13: 6810-6810

  • DOI: https://doi.org/10.1038/s41467-022-34552-7
  • Primary Citation of Related Structures:  
    8A4L, 8ADS, 8ADU, 8ADV, 8ADW, 8AEX

  • PubMed Abstract: 

    α-synuclein misfolding and aggregation into fibrils is a common feature of α-synucleinopathies, such as Parkinson's disease, in which α-synuclein fibrils are a characteristic hallmark of neuronal inclusions called Lewy bodies. Studies on the composition of Lewy bodies extracted postmortem from brain tissue of Parkinson's patients revealed that lipids and membranous organelles are also a significant component. Interactions between α-synuclein and lipids have been previously identified as relevant for Parkinson's disease pathology, however molecular insights into their interactions have remained elusive. Here we present cryo-electron microscopy structures of six α-synuclein fibrils in complex with lipids, revealing specific lipid-fibril interactions. We observe that phospholipids promote an alternative protofilament fold, mediate an unusual arrangement of protofilaments, and fill the central cavities of the fibrils. Together with our previous studies, these structures also indicate a mechanism for fibril-induced lipid extraction, which is likely to be involved in the development of α-synucleinopathies. Specifically, one potential mechanism for the cellular toxicity is the disruption of intracellular vesicles mediated by fibrils and oligomers, and therefore the modulation of these interactions may provide a promising strategy for future therapeutic interventions.

  • Organizational Affiliation

    Institute of Biological Information Processing (IBI-7: Structural Biochemistry) and JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D, E
A, B, C, D, E, F, G, H, I, J
140Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P37840 (Homo sapiens)
Explore P37840 
Go to UniProtKB:  P37840
PHAROS:  P37840
GTEx:  ENSG00000145335 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP37840
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.76 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Max Planck SocietyGermany--
German Research Foundation (DFG)Germany2067/1-390729940
German Research Foundation (DFG)Germany397022504
Helmholtz AssociationGermany--

Revision History  (Full details and data files)

  • Version 1.0: 2022-10-12
    Type: Initial release
  • Version 1.1: 2022-11-23
    Changes: Database references