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Crystal structure of the channel protein CorA from Campylobacter jejuni

X-ray diffraction
2.1Å resolution
PDB entry 8zah coloured by chain, front view.
PDB entry 8zah coloured by chain, side view.
PDB entry 8zah coloured by chain, top view.
Source organism: Campylobacter jejuni
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Magnesium transport protein CorA
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Multimeric state: monomeric
Accessible surface area: 13253.13 Å2
Buried surface area: 563.71 Å2
Dissociation area: 74.87 Å2
Dissociation energy (ΔGdiss): 12.22 kcal/mol
Dissociation entropy (TΔSdiss): 0.58 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-275453
Assembly 2
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Assembly Name: Magnesium transport protein CorA
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Multimeric state: monomeric
Accessible surface area: 12306.09 Å2
Buried surface area: 562.11 Å2
Dissociation area: 66.9 Å2
Dissociation energy (ΔGdiss): 10.59 kcal/mol
Dissociation entropy (TΔSdiss): 0.58 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-275453

Macromolecules

Magnesium transport protein CorA
Chains: A, B
Length: 274 amino acids
Theoretical weight: 32.14 KDa
Source organism: Campylobacter jejuni
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9PPI1 (Residues: 1-268; Coverage: 82%)
Gene names: Cj0726c, corA
Pfam: CorA-like Mg2+ transporter protein
Magnesium transport protein CorA in PDB entry 8zah, assembly 1, front view.
Magnesium transport protein CorA in PDB entry 8zah, assembly 1, side view.
Magnesium transport protein CorA in PDB entry 8zah, assembly 1, top view.
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