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Studies of Ion Transport in K+ Channels

X-ray diffraction
2.26Å resolution
PDB entry 6dz1 coloured by chain, front view.
PDB entry 6dz1 coloured by chain, side view.
PDB entry 6dz1 coloured by chain, top view.
Source organism: Bacillus cereus BDRD-Cer4
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: Potassium channel protein
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Multimeric state: homo tetramer
Accessible surface area: 18612.31 Å2
Buried surface area: 9977.66 Å2
Dissociation area: 4,107.4 Å2
Dissociation energy (ΔGdiss): 80.45 kcal/mol
Dissociation entropy (TΔSdiss): 38.98 kcal/mol
Symmetry number: 4
PDBe Complex ID: PDB-CPX-237311
Assembly 2
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Assembly Name: Potassium channel protein
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Multimeric state: homo tetramer
Accessible surface area: 18403.34 Å2
Buried surface area: 10086.57 Å2
Dissociation area: 3,590.65 Å2
Dissociation energy (ΔGdiss): 32.27 kcal/mol
Dissociation entropy (TΔSdiss): 38.97 kcal/mol
Symmetry number: 4
PDBe Complex ID: PDB-CPX-237311

Macromolecules

Potassium channel protein
Chains: A, B
Length: 95 amino acids
Theoretical weight: 10.57 KDa
Source organism: Bacillus cereus BDRD-Cer4
Expression system: Escherichia coli
InterPro:
CATH: Helix Hairpins
Potassium channel protein in PDB entry 6dz1, assembly 1, front view.
Potassium channel protein in PDB entry 6dz1, assembly 1, side view.
Potassium channel protein in PDB entry 6dz1, assembly 1, top view.
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