6XYQ

Multiple system atrophy Type II-2 alpha-synuclein filament


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.09 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structures of alpha-synuclein filaments from multiple system atrophy.

Schweighauser, M.Shi, Y.Tarutani, A.Kametani, F.Murzin, A.G.Ghetti, B.Matsubara, T.Tomita, T.Ando, T.Hasegawa, K.Murayama, S.Yoshida, M.Hasegawa, M.Scheres, S.H.W.Goedert, M.

(2020) Nature 585: 464-469

  • DOI: https://doi.org/10.1038/s41586-020-2317-6
  • Primary Citation of Related Structures:  
    6XYO, 6XYP, 6XYQ

  • PubMed Abstract: 

    Synucleinopathies, which include multiple system atrophy (MSA), Parkinson's disease, Parkinson's disease with dementia and dementia with Lewy bodies (DLB), are human neurodegenerative diseases 1 . Existing treatments are at best symptomatic. These diseases are characterized by the presence of, and believed to be caused by the formation of, filamentous inclusions of α-synuclein in brain cells 2,3 . However, the structures of α-synuclein filaments from the human brain are unknown. Here, using cryo-electron microscopy, we show that α-synuclein inclusions from the brains of individuals with MSA are made of two types of filament, each of which consists of two different protofilaments. In each type of filament, non-proteinaceous molecules are present at the interface of the two protofilaments. Using two-dimensional class averaging, we show that α-synuclein filaments from the brains of individuals with MSA differ from those of individuals with DLB, which suggests that distinct conformers or strains characterize specific synucleinopathies. As is the case with tau assemblies 4-9 , the structures of α-synuclein filaments extracted from the brains of individuals with MSA differ from those formed in vitro using recombinant proteins, which has implications for understanding the mechanisms of aggregate propagation and neurodegeneration in the human brain. These findings have diagnostic and potential therapeutic relevance, especially because of the unmet clinical need to be able to image filamentous α-synuclein inclusions in the human brain.


  • Organizational Affiliation

    MRC Laboratory of Molecular Biology, Cambridge, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alpha-synuclein
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
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.09 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (MRC, United Kingdom)United KingdomMC_UP_A025_1013
Medical Research Council (MRC, United Kingdom)United KingdomMC_U105184291
Innovative Medicines InitiativeUnited Kingdom116060
Japan Agency for Medical Research and Development (AMED)JapanJP18ek0109391
Japan Agency for Medical Research and Development (AMED)JapanJP18dm020719
National Institutes of Health/National Institute on Aging (NIH/NIA)United StatesP30AG010133
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United StatesU01NS110437

Revision History  (Full details and data files)

  • Version 1.0: 2020-02-12
    Type: Initial release
  • Version 1.1: 2020-06-10
    Changes: Database references
  • Version 1.2: 2020-09-30
    Changes: Database references
  • Version 1.3: 2024-05-22
    Changes: Data collection, Database references