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Crystal structure of octameric ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) from Pyrococcus horikoshii OT3 (form-2 crystal)

X-ray diffraction
3Å resolution
PDB entry 2cxe coloured by chain, front view.
PDB entry 2cxe coloured by chain, side view.
PDB entry 2cxe coloured by chain, top view.
Source organism: Pyrococcus horikoshii OT3
Assemblies composition:
homo octamer
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1
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Assembly Name: Ribulose bisphosphate carboxylase
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Multimeric state: homo octamer
Accessible surface area: 107452.52 Å2
Buried surface area: 39045.39 Å2
Dissociation area: 5,611.77 Å2
Dissociation energy (ΔGdiss): -38.38 kcal/mol
Dissociation entropy (TΔSdiss): 47.99 kcal/mol
Symmetry number: 8
PDBe Complex ID: PDB-CPX-129750
Assembly 2 (preferred)
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Assembly Name: Ribulose bisphosphate carboxylase
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Multimeric state: homo dimer
Accessible surface area: 29609.33 Å2
Buried surface area: 7009.91 Å2
Dissociation area: 3,504.96 Å2
Dissociation energy (ΔGdiss): 38.29 kcal/mol
Dissociation entropy (TΔSdiss): 15.1 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-129749
Assembly 3
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Assembly Name: Ribulose bisphosphate carboxylase
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Multimeric state: homo dimer
Accessible surface area: 29663.54 Å2
Buried surface area: 6961.34 Å2
Dissociation area: 3,480.67 Å2
Dissociation energy (ΔGdiss): 36.72 kcal/mol
Dissociation entropy (TΔSdiss): 15.1 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-129749
Assembly 4
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Assembly Name: Ribulose bisphosphate carboxylase
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Multimeric state: homo dimer
Accessible surface area: 29743.01 Å2
Buried surface area: 6906.01 Å2
Dissociation area: 3,453.01 Å2
Dissociation energy (ΔGdiss): 35.94 kcal/mol
Dissociation entropy (TΔSdiss): 15.09 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-129749

Macromolecules

Ribulose bisphosphate carboxylase
Chains: A, B, C, D
Length: 430 amino acids
Theoretical weight: 48.31 KDa
Source organism: Pyrococcus horikoshii OT3
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O58677 (Residues: 1-430; Coverage: 100%)
Gene names: PH0939, rbcL
Pfam:
InterPro:
CATH:
SCOP:
Ribulose bisphosphate carboxylase in PDB entry 2cxe, assembly 2, front view.
Ribulose bisphosphate carboxylase in PDB entry 2cxe, assembly 2, side view.
Ribulose bisphosphate carboxylase in PDB entry 2cxe, assembly 2, top view.
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