2lmn

Structural Model for a 40-Residue Beta-Amyloid Fibril with Two-Fold Symmetry, Positive Stagger

Method: SOLID-STATE NMR Dmax: 83.8 Å Quality: GOOD

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

Beta-amyloid protein 40

OrganismNot specified

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 672–711 Chain B; UniProt 672–711 Chain C; UniProt 672–711 Chain D; UniProt 672–711 Chain E; UniProt 672–711 Chain F; UniProt 672–711 Chain G; UniProt 672–711 Chain H; UniProt 672–711 Chain I; UniProt 672–711 Chain J; UniProt 672–711 Chain K; UniProt 672–711 Chain L; UniProt 672–711 Not recorded No other associated polymer SOLID-STATE NMR NMR measurement conditions:pH 7.4;300 K;Ionic strength (raw mmCIF value) 10;Pressure ambient NMR sample composition:selective 13C and 15N beta-amyloid, 10 mM phosphate buffer | 10 mM phosphate buffer 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 1–40; UniProt 672–711 Author chain B; PDBConstruct 1–40; UniProt 672–711 Author chain C; PDBConstruct 1–40; UniProt 672–711 Author chain D; PDBConstruct 1–40; UniProt 672–711 Author chain E; PDBConstruct 1–40; UniProt 672–711 Author chain F; PDBConstruct 1–40; UniProt 672–711 Author chain G; PDBConstruct 1–40; UniProt 672–711 Author chain H; PDBConstruct 1–40; UniProt 672–711 Author chain I; PDBConstruct 1–40; UniProt 672–711 Author chain J; PDBConstruct 1–40; UniProt 672–711 Author chain K; PDBConstruct 1–40; UniProt 672–711 Author chain L; PDBConstruct 1–40; UniProt 672–711

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 2lmn

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2lmn
Deposition date deposition_date2011-12-08
Structure title titleStructural Model for a 40-Residue Beta-Amyloid Fibril with Two-Fold Symmetry, Positive Stagger
Keywords keywords;Alzheimer's disease, two-fold symmetry, PROTEIN FIBRIL ;; PROTEIN FIBRIL
Experimental Method methodSOLID-STATE NMR

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

Radius of gyration Rg (Guinier) rg_guinier23.31
Radius of gyration Rg (electron density) rg_electron22.74
Forward intensity I(0) i02073840000.00
Molecular weight molecular_weight404510.0 kDa
Excluded volume excluded_volume513630 ų
Envelope volume envelope_volume104440 ų
Hydration-shell volume shell_volume33597 ų
Envelope diameter envelope_diameter92.1
Shell Rg shell_rg33.52
Envelope Rg envelope_rg25.96
Shape Rg shape_rg22.82
Total Rg total_rg22.67
Total atoms total_atoms57000
Residues n_residues3840
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 dmax83.8
Rg (real space) rg_real23.27
Rg uncertainty (real space) rg_real_error0.66
I(0) (real space) i0_real2.0740e+09
I(0) uncertainty (real space) i0_real_error2.8260e+07
Rg (reciprocal space) rg_reciprocal23.28
I(0) (reciprocal space) i0_reciprocal2074000000.0000
Solution quality estimate total_estimate0.8376
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary31.0
Skewness Skewness skewness0.341
Kurtosis Kurtosis kurtosis0.041
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2997000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.647; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.976; Smooth: 0.969

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)