7F29

Cryo-EM structure of the fibril formed by disaccharide-modified amyloid-beta(1-42)

• PDB DOI: https://doi.org/10.2210/pdb7F29/pdb
• EM Map EMD-31428: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2021-06-10 Released: 2022-07-13 
• Deposition Author(s): Xia, W.C., Sun, Y.P., Liu, C.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

O-Glycosylation Induces Amyloid-beta To Form New Fibril Polymorphs Vulnerable for Degradation

Liu, D., Wei, Q., Xia, W., He, C., Zhang, Q., Huang, L., Wang, X., Sun, Y., Ma, Y., Zhang, X., Wang, Y., Shi, X., Liu, C., Dong, S.

(2021) J Am Chem Soc 143: 20216-20223

• DOI: https://doi.org/10.1021/jacs.1c08607

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 25.81 kDa 
• Atom Count: 1,794 
• Modelled Residue Count: 222 
• Deposited Residue Count: 222 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Amyloid-beta A4 protein	A [auth E], B [auth C], C [auth D], D [auth F], E [auth A], F [auth B]	37	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens) Explore P05067  Go to UniProtKB:  P05067
PHAROS:  P05067 GTEx:  ENSG00000142192

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-galactopyranose-(1-3)-2-amino-2-deoxy-alpha-D-galactopyranose	G, H, I, J, K, L	2		N/A

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACY	M [auth E], N [auth C], O [auth D], P [auth F], Q [auth A], R [auth B]	ACETIC ACID C2 H4 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-07-13 
Deposition Author(s): Xia, W.C., Sun, Y.P., Liu, C.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2022-07-13
  Type: Initial release