2y3k

Structure of segment MVGGVVIA from the amyloid-beta peptide (Ab, residues 35-42), alternate polymorph 1

Method: X-RAY DIFFRACTION Dmax: 53.9 Å Quality: REASONABLE

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

AMYLOID BETA A4 PROTEIN

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 706–713 Chain B; UniProt 706–713 Fragment:RESIDUES 706-713 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.6;AB3542 CRYSTALS (FIRST DISSOLVED IN WATER) WERE FOUND IN 1.5-YEAR-OLD TRAYS SET AT 0.5 MG/ML IN 1.26 M NA PHOSPHATE MONOBASIC MONOHYDRATE, 0.14 M K PHOSPHATE DIBASIC, PH 5.6 (CRYSTAL FORM I) Resolution 1.90 Å R-free 0.231
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 706–713 Chain D; UniProt 706–713 Fragment:RESIDUES 706-713 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.6;AB3542 CRYSTALS (FIRST DISSOLVED IN WATER) WERE FOUND IN 1.5-YEAR-OLD TRAYS SET AT 0.5 MG/ML IN 1.26 M NA PHOSPHATE MONOBASIC MONOHYDRATE, 0.14 M K PHOSPHATE DIBASIC, PH 5.6 (CRYSTAL FORM I) Resolution 1.90 Å R-free 0.231
3 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 706–713 Chain F; UniProt 706–713 Fragment:RESIDUES 706-713 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.6;AB3542 CRYSTALS (FIRST DISSOLVED IN WATER) WERE FOUND IN 1.5-YEAR-OLD TRAYS SET AT 0.5 MG/ML IN 1.26 M NA PHOSPHATE MONOBASIC MONOHYDRATE, 0.14 M K PHOSPHATE DIBASIC, PH 5.6 (CRYSTAL FORM I) Resolution 1.90 Å R-free 0.231
4 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain G; UniProt 706–713 Chain H; UniProt 706–713 Fragment:RESIDUES 706-713 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.6;AB3542 CRYSTALS (FIRST DISSOLVED IN WATER) WERE FOUND IN 1.5-YEAR-OLD TRAYS SET AT 0.5 MG/ML IN 1.26 M NA PHOSPHATE MONOBASIC MONOHYDRATE, 0.14 M K PHOSPHATE DIBASIC, PH 5.6 (CRYSTAL FORM I) Resolution 1.90 Å R-free 0.231

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 279 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 1–8; UniProt 706–713 Author chain B; PDBConstruct 1–8; UniProt 706–713 Author chain C; PDBConstruct 1–8; UniProt 706–713 Author chain D; PDBConstruct 1–8; UniProt 706–713 Author chain E; PDBConstruct 1–8; UniProt 706–713 Author chain F; PDBConstruct 1–8; UniProt 706–713 Author chain G; PDBConstruct 1–8; UniProt 706–713 Author chain H; PDBConstruct 1–8; UniProt 706–713

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 2y3k

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2y3k
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2y3k
Deposition date deposition_date2010-12-21
Structure title titleStructure of segment MVGGVVIA from the amyloid-beta peptide (Ab, residues 35-42), alternate polymorph 1
Keywords keywordsPROTEIN FIBRIL, ALZHEIMER DISEASE; PROTEIN FIBRIL
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier16.08
Radius of gyration Rg (electron density) rg_electron15.71
Forward intensity I(0) i0687833.00
Molecular weight molecular_weight5960.0 kDa
Excluded volume excluded_volume7804 ų
Envelope volume envelope_volume10451 ų
Hydration-shell volume shell_volume6702 ų
Envelope diameter envelope_diameter52.1
Shell Rg shell_rg18.60
Envelope Rg envelope_rg15.84
Shape Rg shape_rg15.65
Total Rg total_rg16.73
Total atoms total_atoms408
Residues n_residues64
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 dmax53.9
Rg (real space) rg_real16.27
Rg uncertainty (real space) rg_real_error0.44
I(0) (real space) i0_real6.8780e+05
I(0) uncertainty (real space) i0_real_error7.7340e+03
Rg (reciprocal space) rg_reciprocal16.26
I(0) (reciprocal space) i0_reciprocal687800.0000
Solution quality estimate total_estimate0.7350
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary12.3
Skewness Skewness skewness0.448
Kurtosis Kurtosis kurtosis-0.578
Angular range angular_range— – 0.4950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha190300.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.724; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.383; 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)