› 2pnv

X-ray diffraction
2.1Å resolution

Crystal Structure of the leucine zipper domain of small-conductance Ca2+-activated K+ (SKCa) channel from Rattus norvegicus

Released:
DOI: 10.2210/pdb2pnv/pdb
PDB entry 2pnv coloured by chain, front view.
PDB entry 2pnv coloured by chain, side view.
PDB entry 2pnv coloured by chain, top view.
Source organism: Rattus norvegicus
Primary publication:
Crystal structure of the leucine zipper domain of small-conductance Ca2+-activated K+ (SK(Ca)) channel from Rattus norvegicus.
Kim JY, Kim MK, Kang GB, Park CS, Eom SH
Proteins 70 568-71 (2008)
PMID: 17910055

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
homo trimer (preferred)
homo hexamer
Assembly name:
PDBe Complex ID:
PDB-CPX-159746 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Small conductance calcium-activated potassium channel protein 2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 43 amino acids
Theoretical weight: 4.95 KDa
Source organism: Rattus norvegicus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P70604 (Residues: 488-526; Coverage: 7%)
Gene name: Kcnn2

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE BL-5A
Spacegroup: P63
Unit cell:
a: 29.2Å b: 29.2Å c: 192.9Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.215 0.21 0.278
Expression system: Escherichia coli BL21(DE3)

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Citations

8 citation in other articles

Cardiac small conductance Ca2+-activated K+ channel subunits form heteromultimers via the coiled-coil domains in the C termini of the channels.
Tuteja et al. (2010)
7 more

3 mentions without citation

The Structure and Topology of α-Helical Coiled Coils.
Lupas et al. (2017)
2 more