PDBe 4psq

X-ray diffraction
2.4Å resolution

Crystal Structure of Retinol-Binding Protein 4 (RBP4) in complex with a non-retinoid ligand


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Retinol-binding protein 4 Chains: A, B
Molecule details ›
Chains: A, B
Length: 212 amino acids
Theoretical weight: 24.62 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P02753 (Residues: 19-201; Coverage: 100%)
Gene names: PRO2222, RBP4
Sequence domains: Lipocalin / cytosolic fatty-acid binding protein family
Structure domains: Lipocalin

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P65
Unit cell:
a: 96.531Å b: 96.531Å c: 118.072Å
α: 90° β: 90° γ: 120°
R R work R free
0.244 0.242 0.287
Expression system: Escherichia coli