PDBe 3agw

X-ray diffraction
2.2Å resolution

Crystal Structure of the Cytoplasmic Domain of G-Protein-Gated Inward Rectifier Potassium Channel Kir3.2 in the absence of Na+

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
G protein-activated inward rectifier potassium channel 2 Chain: A
Molecule details ›
Chain: A
Length: 208 amino acids
Theoretical weight: 23.75 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P48542 (Residues: 53-381; Coverage: 48%)
  • Best match: P48542-3 (Residues: 53-318)
Gene names: Girk2, Kcnj6, Kcnj7, W
Sequence domains: Inward rectifier potassium channel C-terminal domain
Structure domains: G protein-activated inward rectifier potassium channel 1

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL41XU
Spacegroup: I422
Unit cell:
a: 81.943Å b: 81.943Å c: 172.769Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.2 0.198 0.236
Expression system: Escherichia coli