2beg

3D Structure of Alzheimer's Abeta(1-42) fibrils

Method: SOLUTION NMR Dmax: 50.0 Å Quality: GOOD

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

Amyloid beta A4 protein

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 × 5 PDB declaration: pentameric(5) 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 Fragment:Beta-amyloid protein 42 No other associated polymer SOLUTION NMR mmCIF provides none of the parsed experimental conditions Resolution not provided

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

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 2beg

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2beg
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2beg
Deposition date deposition_date2005-10-24
Structure title title3D Structure of Alzheimer's Abeta(1-42) fibrils
Keywords keywords;alzheimer's, fibril, protofilament, beta-sandwich, quenched hydrogen/deuterium exchange, pairwise mutagenesis, PROTEIN FIBRIL ;; PROTEIN FIBRIL
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier14.06
Radius of gyration Rg (electron density) rg_electron14.61
Forward intensity I(0) i0179285000.00
Molecular weight molecular_weight127950.0 kDa
Excluded volume excluded_volume166640 ų
Envelope volume envelope_volume24343 ų
Hydration-shell volume shell_volume13553 ų
Envelope diameter envelope_diameter53.6
Shell Rg shell_rg21.08
Envelope Rg envelope_rg15.82
Shape Rg shape_rg14.59
Total Rg total_rg14.94
Total atoms total_atoms18550
Residues n_residues1300
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 dmax50.0
Rg (real space) rg_real14.10
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real1.7930e+08
I(0) uncertainty (real space) i0_real_error2.0160e+06
Rg (reciprocal space) rg_reciprocal14.09
I(0) (reciprocal space) i0_reciprocal179300000.0000
Solution quality estimate total_estimate0.8118
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary15.8
Skewness Skewness skewness0.438
Kurtosis Kurtosis kurtosis-0.007
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha235100.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.540; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.944; Smooth: 0.984

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)