PDBe 4pnk

X-ray diffraction
2.56Å resolution

G protein-coupled receptor kinase 2 in complex with GSK180736A


Function and Biology Details

Reaction catalysed:
ATP + [beta-adrenergic receptor] = ADP + [beta-adrenergic receptor] phosphate
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Beta-adrenergic receptor kinase 1 Chain: A
Molecule details ›
Chain: A
Length: 689 amino acids
Theoretical weight: 79.69 KDa
Source organism: Homo sapiens
Expression system: Trichoplusia ni
  • Canonical: P25098 (Residues: 1-689; Coverage: 100%)
Gene names: ADRBK1, BARK, BARK1, GRK2
Sequence domains:
Structure domains:
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 Chain: B
Molecule details ›
Chain: B
Length: 340 amino acids
Theoretical weight: 37.42 KDa
Source organism: Homo sapiens
Expression system: Trichoplusia ni
  • Canonical: P62873 (Residues: 1-340; Coverage: 100%)
Gene name: GNB1
Sequence domains: WD domain, G-beta repeat
Structure domains: YVTN repeat-like/Quinoprotein amine dehydrogenase
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 Chain: G
Molecule details ›
Chain: G
Length: 71 amino acids
Theoretical weight: 7.85 KDa
Source organism: Bos taurus
Expression system: Trioceros cristatus
  • Canonical: P63212 (Residues: 1-71; Coverage: 100%)
Gene name: GNG2
Sequence domains: GGL domain
Structure domains: Transducin (heterotrimeric G protein), gamma chain

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-F
Spacegroup: C2221
Unit cell:
a: 61.435Å b: 241.398Å c: 212.526Å
α: 90° β: 90° γ: 90°
R R work R free
0.194 0.19 0.259
Expression systems:
  • Trichoplusia ni
  • Trioceros cristatus