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CRYSTALLOGRAPHIC STUDIES OF INHIBITOR BINDING SITES IN HUMAN CARBONIC ANHYDRASE II. A PENTACOORDINATED BINDING OF THE SCN-ION TO THE ZINC AT HIGH P*H

X-ray diffraction
2Å resolution
PDB entry 3ca2 coloured by chain, front view.
PDB entry 3ca2 coloured by chain, side view.
PDB entry 3ca2 coloured by chain, top view.
Source organism: Homo sapiens
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Carbonic anhydrase 2
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Multimeric state: monomeric
Accessible surface area: 11334.46 Å2
Buried surface area: 892.07 Å2
Dissociation area: 264.14 Å2
Dissociation energy (ΔGdiss): 10.99 kcal/mol
Dissociation entropy (TΔSdiss): 3.91 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-133681

Macromolecules

Carbonic anhydrase 2
Chain: A
Length: 259 amino acids
Theoretical weight: 29.16 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P00918 (Residues: 2-260; Coverage: 100%)
Gene name: CA2
Pfam: Eukaryotic-type carbonic anhydrase
InterPro:
CATH: Alpha carbonic anhydrase
SCOP: Carbonic anhydrase
Carbonic anhydrase 2 in PDB entry 3ca2, assembly 1, front view.
Carbonic anhydrase 2 in PDB entry 3ca2, assembly 1, side view.
Carbonic anhydrase 2 in PDB entry 3ca2, assembly 1, top view.
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