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The electron crystallography structure of the cAMP-free potassium channel MloK1

Electron crystallography
7Å resolution
PDB entry 4chw coloured by chain, front view.
PDB entry 4chw coloured by chain, side view.
PDB entry 4chw coloured by chain, top view.
Source organism: Mesorhizobium loti
Assembly composition:
homo tetramer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Cyclic nucleotide-gated potassium channel mll3241
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Multimeric state: homo tetramer
Accessible surface area: 66529.03 Å2
Buried surface area: 19741.79 Å2
Dissociation area: 9,854.21 Å2
Dissociation energy (ΔGdiss): 85.54 kcal/mol
Dissociation entropy (TΔSdiss): 48.03 kcal/mol
Symmetry number: 4
PDBe Complex ID: PDB-CPX-189151

Macromolecules

Cyclic nucleotide-gated potassium channel mll3241
Chains: A, B, C, D
Length: 361 amino acids
Theoretical weight: 38.6 KDa
Source organism: Mesorhizobium loti
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q98GN8 (Residues: 1-355; Coverage: 100%)
Gene name: mll3241
Pfam:
InterPro:
Cyclic nucleotide-gated potassium channel mll3241 in PDB entry 4chw, assembly 1, front view.
Cyclic nucleotide-gated potassium channel mll3241 in PDB entry 4chw, assembly 1, side view.
Cyclic nucleotide-gated potassium channel mll3241 in PDB entry 4chw, assembly 1, top view.
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