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
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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 Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 COPPER (I) ION × 1 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

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.

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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
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

2fk2__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2fk2__assembly_1__model_1 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

2fk2__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)12.67 Å
Rg (electron density)11.67 Å
Total Rg13.04 Å
Atom count476
Residues59
Excluded volume8436 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2fk2__assembly_1__model_1 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (3)

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6. 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
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7. Citations (1)