PDBe 5fen

X-ray diffraction
1.55Å resolution

Crystal structure of the Q108K:K40L:T53C mutant of human Cellular Retinol Binding Protein II in complex with All-trans-Retinal after 24 hours of incubation at 1.55 Angstrom Resolution

Source organism: Homo sapiens
Entry authors: Nossoni Z, Nosrati M, Geiger JH

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Retinol-binding protein 2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 133 amino acids
Theoretical weight: 15.58 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
  • 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: 29.947Å b: 35.89Å c: 63.866Å
α: 91.01° β: 92.23° γ: 113.59°
R R work R free
0.202 0.199 0.241
Expression system: Escherichia coli BL21