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H. influenzae beta-carbonic anhydrase, variant Y181F with 1M bicarbonate

X-ray diffraction
2.296Å resolution
PDB entry 3e2w coloured by chain, front view.
PDB entry 3e2w coloured by chain, side view.
PDB entry 3e2w coloured by chain, top view.
Source organism: Haemophilus influenzae
Assembly composition:
homo tetramer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1
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Assembly Name: Carbonic anhydrase 2
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Multimeric state: homo tetramer
Accessible surface area: 34450.66 Å2
Buried surface area: 17800.8 Å2
Dissociation area: 6,084.09 Å2
Dissociation energy (ΔGdiss): 100.33 kcal/mol
Dissociation entropy (TΔSdiss): 15.49 kcal/mol
Symmetry number: 4
PDBe Complex ID: PDB-CPX-155253
Assembly 2 (preferred)
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Assembly Name: Carbonic anhydrase 2
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Multimeric state: homo tetramer
Accessible surface area: 33372.47 Å2
Buried surface area: 18053.36 Å2
Dissociation area: 2,216.35 Å2
Dissociation energy (ΔGdiss): 50.41 kcal/mol
Dissociation entropy (TΔSdiss): 14.2 kcal/mol
Symmetry number: 4
PDBe Complex ID: PDB-CPX-155253

Macromolecules

Carbonic anhydrase 2
Chains: A, B, C, D, E, F
Length: 229 amino acids
Theoretical weight: 26.27 KDa
Source organism: Haemophilus influenzae
Expression system: Escherichia coli
UniProt:
  • Canonical: P45148 (Residues: 1-229; Coverage: 100%)
Gene names: HI_1301, can
Pfam: Carbonic anhydrase
InterPro:
CATH: Carbonic anhydrase
Carbonic anhydrase 2 in PDB entry 3e2w, assembly 2, front view.
Carbonic anhydrase 2 in PDB entry 3e2w, assembly 2, side view.
Carbonic anhydrase 2 in PDB entry 3e2w, assembly 2, top view.
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