8BGS

Tau Paired Helical Filament from Extracellular Vesicles from Alzheimer's disease brain


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.16 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Tau filaments are tethered within brain extracellular vesicles in Alzheimer's disease.

Fowler, S.L.Behr, T.S.Turkes, E.Cauhy, P.M.Foiani, M.S.Schaler, A.Crowley, G.Bez, S.Ficulle, E.Tsefou, E.O'Brien, D.P.Fischer, R.Geary, B.Gaur, P.Miller, C.D'Acunzo, P.Levy, E.Duff, K.E.Ryskeldi-Falcon, B.

(2023) Biorxiv 

  • DOI: https://doi.org/10.1101/2023.04.30.537820
  • Primary Citation of Related Structures:  
    8BGS, 8BGV

  • PubMed Abstract: 
  • The abnormal assembly of tau protein in neurons is the pathological hallmark of multiple neurodegenerative diseases, including Alzheimer's disease (AD). In addition, assembled tau associates with extracellular vesicles (EVs) in the central nervous system of patients with AD, which is linked to its clearance and prion-like propagation between neurons ...

    The abnormal assembly of tau protein in neurons is the pathological hallmark of multiple neurodegenerative diseases, including Alzheimer's disease (AD). In addition, assembled tau associates with extracellular vesicles (EVs) in the central nervous system of patients with AD, which is linked to its clearance and prion-like propagation between neurons. However, the identities of the assembled tau species and the EVs, as well as how they associate, are not known. Here, we combined quantitative mass spectrometry, cryo-electron tomography and single-particle cryo-electron microscopy to study brain EVs from AD patients. We found filaments of truncated tau enclosed within EVs enriched in endo-lysosomal proteins. We observed multiple filament interactions, including with molecules that tethered filaments to the EV limiting membrane, suggesting selective packaging. Our findings will guide studies into the molecular mechanisms of EV-mediated secretion of assembled tau and inform the targeting of EV-associated tau as potential therapeutic and biomarker strategies for AD.


    Organizational Affiliation

    Complex of NBICS Technologies, National Research Center "Kurchatov Institute", Moscow, 123182, Russia. Electronic address: subach_fv@nrcki.ru.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Microtubule-associated protein tau441Homo sapiensMutation(s): 0 
Gene Names: MAPTMAPTLMTBT1TAU
UniProt & NIH Common Fund Data Resources
Find proteins for P10636 (Homo sapiens)
Explore P10636 
Go to UniProtKB:  P10636
PHAROS:  P10636
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP10636
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.16 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_1201/25

Revision History  (Full details and data files)

  • Version 1.0: 2023-05-24
    Type: Initial release