› 4exz

X-ray diffraction
1.61Å resolution

Crystal Structure of the Q108K:K40L Mutant of Cellular Retinol Binding Protein Type II in Complex with All-trans-Retinal at 1.7 Angstrom Resolution

Released:
DOI: 10.2210/pdb4exz/pdb
PDB entry 4exz coloured by chain, front view.
PDB entry 4exz coloured by chain, side view.
PDB entry 4exz coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
Tuning the electronic absorption of protein-embedded all-trans-retinal.
Wang W, Nossoni Z, Berbasova T, Watson CT, Yapici I, Lee KS, Vasileiou C, Geiger JH, Borhan B
Science 338 1340-3 (2012)
PMID: 23224553

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-156128 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
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
UniProt:
  • 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:
Ligand ACT 2 x ACT
Ligand RET 2 x RET
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P1
Unit cell:
a: 29.814Å b: 35.944Å c: 63.975Å
α: 90.83° β: 92.88° γ: 113.19°
R-values:
R R work R free
0.215 0.212 0.265
Expression system: Escherichia coli

Quick links

Citations

14 review citations

Microbial and animal rhodopsins: structures, functions, and molecular mechanisms.
Ernst et al. (2014)
13 more

4 mentions without citation

Tuning the electronic absorption of protein-embedded all-trans-retinal.
Wang et al. (2012)
3 more