Amyloid-beta assemblage on GM1-containing membranes

Experimental Data Snapshot

  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

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This is version 1.1 of the entry. See complete history


The Double-Layered Structure of Amyloid-beta Assemblage on GM1-Containing Membranes Catalytically Promotes Fibrillization.

Yagi-Utsumi, M.Itoh, S.G.Okumura, H.Yanagisawa, K.Kato, K.Nishimura, K.

(2023) ACS Chem Neurosci 14: 2648-2657

  • DOI: https://doi.org/10.1021/acschemneuro.3c00192
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Alzheimer's disease (AD) is associated with progressive accumulation of amyloid-β (Aβ) cross-β fibrils in the brain. Aβ species tightly associated with GM1 ganglioside, a glycosphingolipid abundant in neuronal membranes, promote amyloid fibril formation; therefore, they could be attractive clinical targets. However, the active conformational state of Aβ in GM1-containing lipid membranes is still unknown. The present solid-state nuclear magnetic resonance study revealed a nonfibrillar Aβ assemblage characterized by a double-layered antiparallel β-structure specifically formed on GM1 ganglioside clusters. Our data show that this unique assemblage was not transformed into fibrils on GM1-containing membranes but could promote conversion of monomeric Aβ into fibrils, suggesting that a solvent-exposed hydrophobic layer provides a catalytic surface evoking Aβ fibril formation. Our findings offer structural clues for designing drugs targeting catalytically active Aβ conformational species for the development of anti-AD therapeutics.

  • Organizational Affiliation

    Exploratory Research Center on Life and Living Systems (ExCELLS), National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Amyloid-beta protein 40
A, B, C, D, E
A, B, C, D, E, F, G, H
40Homo sapiensMutation(s): 0 
Gene Names: APPA4AD1
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
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Japan Society for the Promotion of Science (JSPS)JapanJP19K07041
Japan Society for the Promotion of Science (JSPS)JapanJP19K05552

Revision History  (Full details and data files)

  • Version 1.0: 2023-07-05
    Type: Initial release
  • Version 1.1: 2023-09-20
    Changes: Data collection, Database references