1qwp

NMR analysis of 25-35 fragment of beta amyloid peptide

Method: SOLUTION NMR Dmax: 20.2 Å Quality: REASONABLE

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

11-mer peptide from 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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 696–706 Not recorded No other associated polymer SOLUTION NMR NMR measurement conditions:pH 4.5;300 K;Pressure ambient NMR sample composition:2mM abeta(25-35) peptide | hexafluoroisopropanol/water mixture 80/20 v:v 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 1–11; UniProt 696–706

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 1qwp

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1qwp
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id1qwp
Deposition date deposition_date2003-09-03
Structure title titleNMR analysis of 25-35 fragment of beta amyloid peptide
Keywords keywordsamyloid beta peptide- kink structure, PROTEIN BINDING; PROTEIN BINDING
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier5.40
Radius of gyration Rg (electron density) rg_electron6.11
Forward intensity I(0) i06193140.00
Molecular weight molecular_weight20886.0 kDa
Excluded volume excluded_volume26564 ų
Envelope volume envelope_volume2546 ų
Hydration-shell volume shell_volume3494 ų
Envelope diameter envelope_diameter24.7
Shell Rg shell_rg11.42
Envelope Rg envelope_rg7.71
Shape Rg shape_rg6.03
Total Rg total_rg6.75
Total atoms total_atoms2800
Residues n_residues220
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 dmax20.2
Rg (real space) rg_real5.52
Rg uncertainty (real space) rg_real_error0.56
I(0) (real space) i0_real6.1930e+06
I(0) uncertainty (real space) i0_real_error7.3200e+04
Rg (reciprocal space) rg_reciprocal5.52
I(0) (reciprocal space) i0_reciprocal6193000.0000
Solution quality estimate total_estimate0.5398
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks4
Primary peak position r_peak_primary7.2
Skewness Skewness skewness0.410
Kurtosis Kurtosis kurtosis-0.704
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha246.9000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.000; Stabil: 0.913; Sysdev: 1.000; Positv: 0.985; Valcen: 0.287; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1qwpa_
Class classj — Peptides
Fold Fold foldj.42 — Amyloid peptides
Superfamily Superfamily superfamilyj.42.1 — Amyloid peptides
Family Family familyj.42.1.1 — Amyloid peptides

8. Citations (1)

9. Files and Curves (10)