9wao

Structure of type II Abeta fibrils from 5xFAD mice

Method: ELECTRON MICROSCOPY Dmax: 77.2 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Amyloid-beta protein 42

Homo sapiens

UniProt P05067

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain A; UniProt 672–713 Chain B; UniProt 672–713 Chain C; UniProt 672–713 Chain D; UniProt 672–713 Chain E; UniProt 672–713 Chain F; UniProt 672–713 Chain G; UniProt 672–713 Chain H; UniProt 672–713 Chain I; UniProt 672–713 Chain J; UniProt 672–713 Chain K; UniProt 672–713 Chain L; UniProt 672–713 Not recorded No other associated polymer ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.50 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

211 other PDB entries and 282 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A4_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–42; UniProt 672–713 Author chain B; PDBConstruct 1–42; UniProt 672–713 Author chain C; PDBConstruct 1–42; UniProt 672–713 Author chain D; PDBConstruct 1–42; UniProt 672–713 Author chain E; PDBConstruct 1–42; UniProt 672–713 Author chain F; PDBConstruct 1–42; UniProt 672–713 Author chain G; PDBConstruct 1–42; UniProt 672–713 Author chain H; PDBConstruct 1–42; UniProt 672–713 Author chain I; PDBConstruct 1–42; UniProt 672–713 Author chain J; PDBConstruct 1–42; UniProt 672–713 Author chain K; PDBConstruct 1–42; UniProt 672–713 Author chain L; PDBConstruct 1–42; UniProt 672–713

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 9wao

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9wao
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9wao
Deposition date deposition_date2025-08-12
Structure title titleStructure of type II Abeta fibrils from 5xFAD mice
Keywords keywordsAbeta, amyloid, cryo-EM, PROTEIN FIBRIL; PROTEIN FIBRIL
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier22.43
Radius of gyration Rg (electron density) rg_electron21.85
Forward intensity I(0) i022096300.00
Molecular weight molecular_weight38482.0 kDa
Excluded volume excluded_volume49395 ų
Envelope volume envelope_volume54904 ų
Hydration-shell volume shell_volume21654 ų
Envelope diameter envelope_diameter76.6
Shell Rg shell_rg28.20
Envelope Rg envelope_rg21.96
Shape Rg shape_rg21.89
Total Rg total_rg22.58
Total atoms total_atoms2712
Residues n_residues372
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax77.2
Rg (real space) rg_real22.50
Rg uncertainty (real space) rg_real_error0.61
I(0) (real space) i0_real2.2100e+07
I(0) uncertainty (real space) i0_real_error3.0370e+05
Rg (reciprocal space) rg_reciprocal22.49
I(0) (reciprocal space) i0_reciprocal22100000.0000
Solution quality estimate total_estimate0.7658
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.6
Skewness Skewness skewness0.497
Kurtosis Kurtosis kurtosis-0.151
Angular range angular_range— – 0.3550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5233000.0000
Real-space data points n_real_points67
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.661; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.969; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)