PDBe 4qyp

X-ray diffraction
1.62Å resolution

The Crystal Structures of holo-wt human Cellular Retinol Binding protein II (hCRBPII) bound to Retinal


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Retinol-binding protein 2 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 133 amino acids
Theoretical weight: 15.6 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P50120 (Residues: 2-134; Coverage: 99%)
Gene names: CRBP2, RBP2
Sequence domains: Lipocalin / cytosolic fatty-acid binding protein family
Structure domains: Lipocalin

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P1
Unit cell:
a: 36.44Å b: 54.892Å c: 68.716Å
α: 107.75° β: 97.66° γ: 103.08°
R R work R free
0.204 0.202 0.252
Expression system: Escherichia coli