8SEJ

Type I beta-amyloid 42 Filaments from Down syndrome


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.17 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Cryo-EM structures of amyloid-beta and tau filaments in Down syndrome.

Fernandez, A.Hoq, M.R.Hallinan, G.I.Li, D.Bharath, S.R.Vago, F.S.Zhang, X.Ozcan, K.A.Newell, K.L.Garringer, H.J.Jiang, W.Ghetti, B.Vidal, R.

(2024) Nat Struct Mol Biol 31: 903-909

  • DOI: https://doi.org/10.1038/s41594-024-01252-3
  • Primary Citation of Related Structures:  
    8SEH, 8SEI, 8SEJ, 8SEK, 8SEL

  • PubMed Abstract: 

    Adult individuals with Down syndrome (DS) develop Alzheimer disease (AD). Whether there is a difference between AD in DS and AD regarding the structure of amyloid-β (Aβ) and tau filaments is unknown. Here we report the structure of Aβ and tau filaments from two DS brains. We found two Aβ 40 filaments (types IIIa and IIIb) that differ from those previously reported in sporadic AD and two types of Aβ 42 filaments (I and II) identical to those found in sporadic and familial AD. Tau filaments (paired helical filaments and straight filaments) were identical to those in AD, supporting the notion of a common mechanism through which amyloids trigger aggregation of tau. This knowledge is important for understanding AD in DS and assessing whether adults with DS could be included in AD clinical trials.


  • Organizational Affiliation

    Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Amyloid-beta protein 42
A, B, C, D, E
A, B, C, D, E, F, G, H, I, J
34Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens)
Explore P05067 
Go to UniProtKB:  P05067
PHAROS:  P05067
GTEx:  ENSG00000142192 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05067
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.17 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute on Aging (NIH/NIA)United States5U01NS110437 and and 1RF1AG071177

Revision History  (Full details and data files)

  • Version 1.0: 2024-04-03
    Type: Initial release
  • Version 1.1: 2024-04-10
    Changes: Database references
  • Version 1.2: 2024-06-26
    Changes: Data collection, Database references