PDBe 4i9s

X-ray diffraction
2.58Å resolution

Crystal Structure of the R111K:R132L:Y134F:T54V:R59W Mutant of the Cellular Retinoic Acid Binding Protein Type II in Complex with All-Trans Retinal at 2.58 Angstrom Resolution


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Cellular retinoic acid-binding protein 2 Chain: A
Molecule details ›
Chain: A
Length: 137 amino acids
Theoretical weight: 15.52 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P29373 (Residues: 2-138; Coverage: 99%)
Gene name: CRABP2
Sequence domains: Lipocalin / cytosolic fatty-acid binding protein family
Structure domains: Lipocalin

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-G
Spacegroup: P3121
Unit cell:
a: 56.455Å b: 56.455Å c: 108.192Å
α: 90° β: 90° γ: 120°
R R work R free
0.227 0.224 0.288
Expression system: Escherichia coli