6QJM

Cryo-EM structure of heparin-induced 2N4R tau twister filaments


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.3 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Heparin-induced tau filaments are polymorphic and differ from those in Alzheimer's and Pick's diseases.

Zhang, W.Falcon, B.Murzin, A.G.Fan, J.Crowther, R.A.Goedert, M.Scheres, S.H.

(2019) Elife 8: --

  • DOI: 10.7554/eLife.43584
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Assembly of microtubule-associated protein tau into filamentous inclusions underlies a range of neurodegenerative diseases. Tau filaments adopt different conformations in Alzheimer's and Pick's diseases. Here, we used cryo- and immuno- electron micro ...

    Assembly of microtubule-associated protein tau into filamentous inclusions underlies a range of neurodegenerative diseases. Tau filaments adopt different conformations in Alzheimer's and Pick's diseases. Here, we used cryo- and immuno- electron microscopy to characterise filaments that were assembled from recombinant full-length human tau with four (2N4R) or three (2N3R) microtubule-binding repeats in the presence of heparin. 2N4R tau assembles into multiple types of filaments, and the structures of three types reveal similar 'kinked hairpin' folds, in which the second and third repeats pack against each other. 2N3R tau filaments are structurally homogeneous, and adopt a dimeric core, where the third repeats of two tau molecules pack in a parallel manner. The heparin-induced tau filaments differ from those of Alzheimer's or Pick's disease, which have larger cores with different repeat compositions. Our results illustrate the structural versatility of amyloid filaments, and raise questions about the relevance of in vitro assembly.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Cambridge, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Microtubule-associated protein tau
A, B, C
48Homo sapiensMutation(s): 0 
Gene Names: MAPT (MAPTL, MTBT1, TAU)
Find proteins for P10636 (Homo sapiens)
Go to Gene View: MAPT
Go to UniProtKB:  P10636
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.3 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomMC_UP_A025_1013
Medical Research Council (United Kingdom)United KingdomMC_U105184291

Revision History 

  • Version 1.0: 2019-02-27
    Type: Initial release