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X-ray diffraction
2.3Å resolution

CRYSTAL STRUCTURE OF THE HETERODIMERIC COMPLEX OF THE RGS DOMAIN OF RGS9, AND THE GT/I1 CHIMERA ALPHA SUBUNIT [(RGS9)-(GT/I1ALPHA)-(GDP)-(ALF4-)-(MG2+)]

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-129219 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Guanine nucleotide-binding protein G(i) subunit alpha-1; Guanine nucleotide-binding protein G(t) subunit alpha-1 Chains: A, C
Molecule details ›
Chains: A, C
Length: 325 amino acids
Theoretical weight: 37.36 KDa
Source organisms: Expression system: Escherichia coli
UniProt:
  • Canonical: P04695 (Residues: 26-215, 296-350; Coverage: 70%)
  • Canonical: P10824 (Residues: 220-299; Coverage: 23%)
Gene names: GNAT1, Gnai-1, Gnai1
Sequence domains: G-protein alpha subunit
Structure domains:
Regulator of G-protein signaling 9 Chains: B, D
Molecule details ›
Chains: B, D
Length: 147 amino acids
Theoretical weight: 17.42 KDa
Source organism: Bos taurus
Expression system: Escherichia coli
UniProt:
  • Canonical: O46469 (Residues: 276-422; Coverage: 30%)
Gene name: RGS9
Sequence domains: Regulator of G protein signaling domain
Structure domains:

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P212121
Unit cell:
a: 96.785Å b: 115.073Å c: 136.46Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.231 0.231 0.268
Expression system: Escherichia coli