PDBe 4pxf

X-ray diffraction
2.75Å resolution

Crystal structure of the active G-protein-coupled receptor opsin in complex with the finger-loop peptide derived from the full-length arrestin-1


Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Rhodopsin Chain: A
Molecule details ›
Chain: A
Length: 348 amino acids
Theoretical weight: 39.03 KDa
Source organism: Bos taurus
  • Canonical: P02699 (Residues: 1-348; Coverage: 100%)
Gene name: RHO
Sequence domains:
Structure domains: Rhopdopsin 7-helix transmembrane proteins
S-arrestin short form Chain: B
Molecule details ›
Chain: B
Length: 11 amino acids
Theoretical weight: 1.24 KDa
Source organism: Bos taurus
Expression system: Not provided
  • Canonical: P08168 (Residues: 67-77; Coverage: 3%)
Gene name: SAG

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: R32
Unit cell:
a: 242.622Å b: 242.622Å c: 110.216Å
α: 90° β: 90° γ: 120°
R R work R free
0.217 0.215 0.251
Expression system: Not provided