PDBe 3dqb

X-ray diffraction
3.2Å resolution

Crystal structure of the active G-protein-coupled receptor opsin in complex with a C-terminal peptide derived from the Galpha subunit of transducin


Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (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
Guanine nucleotide-binding protein G(t) subunit alpha-1 Chain: B
Molecule details ›
Chain: B
Length: 11 amino acids
Theoretical weight: 1.27 KDa
Source organism: Bos taurus
Expression system: Not provided
  • Canonical: P04695 (Residues: 340-350; Coverage: 3%)
Gene name: GNAT1

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.2
Spacegroup: R32
Unit cell:
a: 238.02Å b: 238.02Å c: 109.132Å
α: 90° β: 90° γ: 120°
R R work R free
0.215 0.213 0.248
Expression system: Not provided