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Crystal structure of the complex of Helicobacter pylori alpha-carbonic anhydrase with benzolamide

X-ray diffraction
2.4Å resolution
PDB entry 5tt8 coloured by chain, front view.
PDB entry 5tt8 coloured by chain, side view.
PDB entry 5tt8 coloured by chain, top view.
Source organism: Helicobacter pylori 26695
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1
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Assembly Name: Alpha-carbonic anhydrase domain-containing protein
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Multimeric state: homo dimer
Accessible surface area: 19911.78 Å2
Buried surface area: 2644.74 Å2
Dissociation area: 1,188.02 Å2
Dissociation energy (ΔGdiss): -1.56 kcal/mol
Dissociation entropy (TΔSdiss): 12.79 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-102460
Assembly 2 (preferred)
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Assembly Name: Alpha-carbonic anhydrase domain-containing protein
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Multimeric state: homo dimer
Accessible surface area: 19381.53 Å2
Buried surface area: 2985.57 Å2
Dissociation area: 1,271.08 Å2
Dissociation energy (ΔGdiss): -2.95 kcal/mol
Dissociation entropy (TΔSdiss): 12.83 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-102460
Assembly 3
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Assembly Name: Alpha-carbonic anhydrase domain-containing protein
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Multimeric state: homo dimer
Accessible surface area: 20624.59 Å2
Buried surface area: 2636.28 Å2
Dissociation area: 1,202.11 Å2
Dissociation energy (ΔGdiss): 1.2 kcal/mol
Dissociation entropy (TΔSdiss): 12.89 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-102460
Assembly 4
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Assembly Name: Alpha-carbonic anhydrase domain-containing protein
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Multimeric state: homo dimer
Accessible surface area: 20267.21 Å2
Buried surface area: 2517.14 Å2
Dissociation area: 1,258.57 Å2
Dissociation energy (ΔGdiss): -3.03 kcal/mol
Dissociation entropy (TΔSdiss): 12.89 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-102460

Macromolecules

Alpha-carbonic anhydrase domain-containing protein
Chains: A, B, C, D, E, F, G, H
Length: 234 amino acids
Theoretical weight: 27 KDa
Source organism: Helicobacter pylori 26695
Expression system: Escherichia coli 'BL21-Gold(DE3)pLysS AG'
UniProt:
  • Canonical: A0A0M3KL20 (Residues: 1-234; Coverage: 100%)
Gene name: C694_06140
Pfam: Eukaryotic-type carbonic anhydrase
InterPro:
CATH: Alpha carbonic anhydrase
Alpha-carbonic anhydrase domain-containing protein in PDB entry 5tt8, assembly 2, front view.
Alpha-carbonic anhydrase domain-containing protein in PDB entry 5tt8, assembly 2, side view.
Alpha-carbonic anhydrase domain-containing protein in PDB entry 5tt8, assembly 2, top view.
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