4mvi

X-ray diffraction
1.7Å resolution

Crystal structure of an engineered lipocalin (Anticalin US7) in complex with the Alzheimer amyloid peptide Abeta(1-40)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-138365 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Neutrophil gelatinase-associated lipocalin Chain: A
Molecule details ›
Chain: A
Length: 188 amino acids
Theoretical weight: 21.53 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P80188 (Residues: 21-198; Coverage: 100%)
Gene names: HNL, LCN2, NGAL
Sequence domains: Lipocalin / cytosolic fatty-acid binding protein family
Structure domains: Lipocalin
Amyloid-beta protein 40 Chain: B
Molecule details ›
Chain: B
Length: 40 amino acids
Theoretical weight: 4.34 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P05067 (Residues: 672-711; Coverage: 5%)
Gene names: A4, AD1, APP
Sequence domains: Beta-amyloid peptide (beta-APP)

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.2
Spacegroup: P212121
Unit cell:
a: 48.95Å b: 58.93Å c: 61.23Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.171 0.169 0.212
Expression systems:
  • Escherichia coli
  • Not provided