6b73

X-ray diffraction
3.1Å resolution

Crystal Structure of a nanobody-stabilized active state of the kappa-opioid receptor

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-230827 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Kappa-type opioid receptor; Soluble cytochrome b562 Chains: A, B
Molecule details ›
Chains: A, B
Length: 418 amino acids
Theoretical weight: 47.03 KDa
Source organisms: Expression system: unidentified baculovirus
UniProt:
  • Canonical: P0ABE7 (Residues: 23-128; Coverage: 100%)
  • Canonical: P41145 (Residues: 54-358; Coverage: 80%)
Gene names: OPRK, OPRK1, cybC
Sequence domains:
Structure domains: Rhodopsin 7-helix transmembrane proteins
Nanobody Chains: C, D
Molecule details ›
Chains: C, D
Length: 134 amino acids
Theoretical weight: 14.91 KDa
Source organism: Lama glama
Expression system: Lama glama

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 23-ID-D
Spacegroup: P21
Unit cell:
a: 62.31Å b: 150.75Å c: 100.28Å
α: 90° β: 105.66° γ: 90°
R-values:
R R work R free
0.255 0.254 0.275
Expression systems:
  • unidentified baculovirus
  • Lama glama