2fk2

Structure of the Alzheimer's Amyloid Precursor Protein (APP) Copper Binding Domain in 'small unit cell' form, Cu(I)-bound

Method: X-RAY DIFFRACTION Dmax: 44.0 Å Quality: GOOD

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

Amyloid beta A4 protein precursor

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 133–189 Fragment:Residues 133 to 189 CU1 COPPER (I) ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8;295 K;0.1 M HEPES pH 8.0, 28 - 32 % (w/v) PEG 10000, VAPOR DIFFUSION, HANGING DROP, temperature 295K Resolution 1.65 Å R-free 0.249

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 3–59; UniProt 133–189

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 2fk2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2fk2
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id2fk2
Deposition date deposition_date2006-01-03
Structure title titleStructure of the Alzheimer's Amyloid Precursor Protein (APP) Copper Binding Domain in 'small unit cell' form, Cu(I)-bound
Keywords keywordsAlpha-Beta Two-layered Sandwich, Cu(I) coordination, APOPTOSIS; APOPTOSIS
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier12.67
Radius of gyration Rg (electron density) rg_electron11.67
Forward intensity I(0) i01199210.00
Molecular weight molecular_weight6898.0 kDa
Excluded volume excluded_volume8436 ų
Envelope volume envelope_volume9285 ų
Hydration-shell volume shell_volume7381 ų
Envelope diameter envelope_diameter44.9
Shell Rg shell_rg16.43
Envelope Rg envelope_rg12.15
Shape Rg shape_rg11.60
Total Rg total_rg13.04
Total atoms total_atoms476
Residues n_residues59
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 dmax44.0
Rg (real space) rg_real12.71
Rg uncertainty (real space) rg_real_error0.31
I(0) (real space) i0_real1.1990e+06
I(0) uncertainty (real space) i0_real_error1.2320e+04
Rg (reciprocal space) rg_reciprocal12.71
I(0) (reciprocal space) i0_reciprocal1199000.0000
Solution quality estimate total_estimate0.7779
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary13.4
Skewness Skewness skewness0.455
Kurtosis Kurtosis kurtosis-0.145
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha274600.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.744; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.878; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2fk2a1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.230 — Dodecin subunit-like
Superfamily Superfamily superfamilyd.230.3 — Amyloid beta a4 protein copper binding domain (domain 2)
Family Family familyd.230.3.1 — Amyloid beta a4 protein copper binding domain (domain 2)
Domain ID domain_idd2fk2a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id2fk2A00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1490 — Dna Ligase; domain 1
Homologous superfamily homologous superfamily140 — Amyloidogenic glycoprotein, copper-binding domain

8. Citations (1)

9. Files and Curves (10)