› 1qrq

X-ray diffraction
2.8Å resolution

STRUCTURE OF A VOLTAGE-DEPENDENT K+ CHANNEL BETA SUBUNIT

Released:
DOI: 10.2210/pdb1qrq/pdb
PDB entry 1qrq coloured by chain, front view.
PDB entry 1qrq coloured by chain, side view.
PDB entry 1qrq coloured by chain, top view.
Source organism: Rattus norvegicus
Primary publication:
Structure of a voltage-dependent K+ channel beta subunit.
Gulbis JM, Mann S, MacKinnon R
Cell 97 943-52 (1999)
PMID: 10399921

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
homo tetramer (preferred)
homo octamer
Assembly name:
PDBe Complex ID:
PDB-CPX-158615 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Voltage-gated potassium channel subunit beta-2 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 325 amino acids
Theoretical weight: 36.35 KDa
Source organism: Rattus norvegicus
Expression system: unidentified baculovirus
UniProt:
  • Canonical: P62483 (Residues: 36-360; Coverage: 89%)
Gene names: Ckbeta2, Kcnab2, Kcnb3
Sequence domains: Aldo/keto reductase family
Structure domains: NADP-dependent oxidoreductase domain

Ligands and Environments

1 bound ligand:
Ligand NDP 4 x NDP
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P21212
Unit cell:
a: 156.746Å b: 114.346Å c: 93.05Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.236 0.236 0.242
Expression system: unidentified baculovirus

Quick links

Citations

66 review citations

Free radicals in the physiological control of cell function.
Dröge W. (2002)
65 more

8 mentions without citation

The Membrane Protein Data Bank.
Raman et al. (2006)
7 more