7u4p

Covalently stabilized triangular trimer composed of Abeta17-36 beta-hairpins

Method: X-RAY DIFFRACTION Dmax: 50.0 Å Quality: GOOD

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

Amyloid-beta 17-36 peptide

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 687–707 Chain B; UniProt 687–707 Chain C; UniProt 687–707 Non-standard monomer:Yes (specific site not provided by mmCIF) No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;298.15 K;0.1 M Tris at pH 8.3, 0.2 M MgCl2, 2.8 M 1,6-hexanediol Resolution 1.80 Å R-free 0.247

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 1–21; UniProt 687–707 Author chain B; PDBConstruct 1–21; UniProt 687–707 Author chain C; PDBConstruct 1–21; UniProt 687–707

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 7u4p

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7u4p
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7u4p
Deposition date deposition_date2022-02-28
Structure title titleCovalently stabilized triangular trimer composed of Abeta17-36 beta-hairpins
Keywords keywords;Abeta oligomer, beta-hairpin, trimer, dodecamer, Alzheimer's disease, DE NOVO PROTEIN ;; DE NOVO PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier15.22
Radius of gyration Rg (electron density) rg_electron13.76
Forward intensity I(0) i0926352.00
Molecular weight molecular_weight6593.0 kDa
Excluded volume excluded_volume8423 ų
Envelope volume envelope_volume10308 ų
Hydration-shell volume shell_volume7298 ų
Envelope diameter envelope_diameter49.0
Shell Rg shell_rg17.81
Envelope Rg envelope_rg14.40
Shape Rg shape_rg13.77
Total Rg total_rg14.86
Total atoms total_atoms933
Residues n_residues54
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_real15.30
Rg uncertainty (real space) rg_real_error0.32
I(0) (real space) i0_real9.2640e+05
I(0) uncertainty (real space) i0_real_error1.0250e+04
Rg (reciprocal space) rg_reciprocal15.29
I(0) (reciprocal space) i0_reciprocal926300.0000
Solution quality estimate total_estimate0.8913
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary15.2
Skewness Skewness skewness0.280
Kurtosis Kurtosis kurtosis-0.654
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha77600.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.947; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.751; Smooth: 0.992

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)