› 7oq2

X-ray diffraction
1.7Å resolution

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-182541 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Potassium channel domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 96 amino acids
Theoretical weight: 10.72 KDa
Source organism: Bacillus cereus ATCC 14579
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q81HW2 (Residues: 19-110; Coverage: 80%)
Gene name: BC_0669
Sequence domains: Ion channel

Ligands and Environments

4 bound ligands:
Ligand MPD 18 x MPD
Ligand NA 4 x NA
Ligand K 2 x K
Ligand CL 2 x CL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PETRA III, DESY BEAMLINE P11
Spacegroup: C2221
Unit cell:
a: 81.204Å b: 88.173Å c: 49.389Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.19 0.186 0.233
Expression system: Escherichia coli BL21

Quick links

Citations

1 citations in other articles

Mechanism of Calcium Permeation in a Glutamate Receptor Ion Channel.
Schackert et al. (2023)