PDBe 3e86

X-ray diffraction
1.6Å resolution

High resolution Crystal Structure of the open NaK channel pore

Source organism: Bacillus cereus
Primary publication:
High-resolution structure of the open NaK channel.
OpenAccess logo Nat. Struct. Mol. Biol. 16 30-4 (2009)
PMID: 19098917

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domain:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Potassium channel protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 96 amino acids
Theoretical weight: 10.71 KDa
Source organism: Bacillus cereus
Expression system: Escherichia coli
  • Canonical: Q81HW2 (Residues: 19-110; Coverage: 81%)
Gene name: BC_0669
Sequence domains: Ion channel
Structure domains: Helix Hairpins

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 23-ID-D
Spacegroup: I4
Unit cell:
a: 68.03Å b: 68.03Å c: 89.264Å
α: 90° β: 90° γ: 90°
R R work R free
0.212 0.212 0.242
Expression system: Escherichia coli