› 3kxd

X-ray diffraction
2.2Å resolution

Crystal structure of the mthk rck in complex with cadmium

Released:
DOI: 10.2210/pdb3kxd/pdb
PDB entry 3kxd coloured by chain, front view.
PDB entry 3kxd coloured by chain, side view.
PDB entry 3kxd coloured by chain, top view.
Source organism: Methanothermobacter thermautotrophicus str. Delta H
Primary publication:
Structure of the MthK RCK in complex with cadmium.
Dvir H, Valera E, Choe S
J Struct Biol 171 231-7 (2010)
PMID: 20371380

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-127897 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Calcium-gated potassium channel MthK Chains: A, B
Molecule details ›
Chains: A, B
Length: 224 amino acids
Theoretical weight: 24.84 KDa
Source organism: Methanothermobacter thermautotrophicus str. Delta H
Expression system: Escherichia coli
UniProt:
  • Canonical: O27564 (Residues: 116-336; Coverage: 66%)
Gene names: MTH_1520, mthK
Sequence domains:
Structure domains:

Ligands and Environments

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

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-1
Spacegroup: P21
Unit cell:
a: 58.022Å b: 38.293Å c: 96.634Å
α: 90° β: 95.1° γ: 90°
R-values:
R R work R free
0.188 0.184 0.254
Expression system: Escherichia coli

Quick links

Citations

1 review citation

A BK (Slo1) channel journey from molecule to physiology.
Contreras et al. (2013)
8 other articles

2 mentions without citation

Structural Studies of Potassium Transport Protein KtrA Regulator of Conductance of K+ (RCK) C Domain in Complex with Cyclic Diadenosine Monophosphate (c-di-AMP).
Kim et al. (2015)
1 more