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The unique structure of wild type carbonic anhydrase alpha-CA1 from Chlamydomonas reinhardtii

X-ray diffraction
1.88Å resolution
PDB entry 3b1b coloured by chain, front view.
PDB entry 3b1b coloured by chain, side view.
PDB entry 3b1b coloured by chain, top view.
Source organism: Chlamydomonas reinhardtii
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Carbonic anhydrase 1
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Multimeric state: homo dimer
Accessible surface area: 25521.59 Å2
Buried surface area: 4967.86 Å2
Dissociation area: 1,577.71 Å2
Dissociation energy (ΔGdiss): 23.4 kcal/mol
Dissociation entropy (TΔSdiss): 13.78 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-148996

Macromolecules

Carbonic anhydrase 1
Chains: A, B
Length: 377 amino acids
Theoretical weight: 41.68 KDa
Source organism: Chlamydomonas reinhardtii
UniProt:
  • Canonical: P20507 (Residues: 1-377; Coverage: 100%)
Gene name: CAH1
Pfam: Eukaryotic-type carbonic anhydrase
InterPro:
CATH: Alpha carbonic anhydrase
Carbonic anhydrase 1 in PDB entry 3b1b, assembly 1, front view.
Carbonic anhydrase 1 in PDB entry 3b1b, assembly 1, side view.
Carbonic anhydrase 1 in PDB entry 3b1b, assembly 1, top view.
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