1lnq

X-ray diffraction
3.3Å resolution

CRYSTAL STRUCTURE OF MTHK AT 3.3 A

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
homo octamer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Calcium-gated potassium channel MthK Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 336 amino acids
Theoretical weight: 37.36 KDa
Source organism: Methanothermobacter thermautotrophicus
Expression system: Escherichia coli
UniProt:
  • Canonical: O27564 (Residues: 1-336; Coverage: 100%)
Gene names: MTH_1520, mthK
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: P61
Unit cell:
a: 137Å b: 137Å c: 373.3Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.301 0.301 0.318
Expression system: Escherichia coli