9CZP

Type Id amyloid-beta 42 filaments in dominantly inherited Alzheimer disease with cotton wool plaques

  • Classification: NEUROPEPTIDE
  • Organism(s): Homo sapiens
  • Mutation(s): No 

  • Deposited: 2024-08-05 Released: 2024-10-02 
  • Deposition Author(s): Hoq, M.R., Vago, F.S., Ozcan, K.A., Bharath, S.R.
  • Funding Organization(s): National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS), National Institutes of Health/National Institute on Aging (NIH/NIA)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 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

Cryo-EM structures of cotton wool plaques' amyloid beta and of tau filaments in dominantly inherited Alzheimer disease.

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

(2024) Acta Neuropathol 148: 20-20

  • DOI: https://doi.org/10.1007/s00401-024-02786-y
  • Primary Citation of Related Structures:  
    9CZI, 9CZL, 9CZN, 9CZP

  • PubMed Abstract: 

    Cotton wool plaques (CWPs) have been described as features of the neuropathologic phenotype of dominantly inherited Alzheimer disease (DIAD) caused by some missense and deletion mutations in the presenilin 1 (PSEN1) gene. CWPs are round, eosinophilic amyloid-β (Aβ) plaques that lack an amyloid core and are recognizable, but not fluorescent, in Thioflavin S (ThS) preparations. Amino-terminally truncated and post-translationally modified Aβ peptide species are the main component of CWPs. Tau immunopositive neurites may be present in CWPs. In addition, neurofibrillary tangles coexist with CWPs. Herein, we report the structure of Aβ and tau filaments isolated from brain tissue of individuals affected by DIAD caused by the PSEN1 V261I and A431E mutations, with the CWP neuropathologic phenotype. CWPs are predominantly composed of type I Aβ filaments present in two novel arrangements, type Ic and type Id; additionally, CWPs contain type I and type Ib Aβ filaments. Tau filaments have the AD fold, which has been previously reported in sporadic AD and DIAD. The formation of type Ic and type Id Aβ filaments may be the basis for the phenotype of CWPs. Our data are relevant for the development of PET imaging methodologies to best detect CWPs in DIAD.


  • Organizational Affiliation

    Department of Biological Sciences, Markey Center for Structural Biology, Purdue University, West Lafayette, IN, 47906, 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, K, L, M, N, O, P, Q, R, S, T
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
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.21.1-5286
MODEL REFINEMENTRosetta3.13
RECONSTRUCTIONRELION4.0.1

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United States5U01 NS1104377
National Institutes of Health/National Institute on Aging (NIH/NIA)United States1RF1 AG071177

Revision History  (Full details and data files)

  • Version 1.0: 2024-10-02
    Type: Initial release