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Crystal structure of apocarotenoid cleavage oxygenase from Synechocystis, native enzyme

X-ray diffraction
2.39Å resolution
PDB entry 2biw coloured by chain, front view.
PDB entry 2biw coloured by chain, side view.
PDB entry 2biw coloured by chain, top view.
Source organism: Synechocystis sp. PCC 6803
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Apocarotenoid-15,15'-oxygenase
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Multimeric state: monomeric
Accessible surface area: 19162.37 Å2
Buried surface area: 1327.18 Å2
Dissociation area: 603.28 Å2
Dissociation energy (ΔGdiss): -0.34 kcal/mol
Dissociation entropy (TΔSdiss): 5.53 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-159934
Assembly 2
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Assembly Name: Apocarotenoid-15,15'-oxygenase
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Multimeric state: monomeric
Accessible surface area: 19037.66 Å2
Buried surface area: 1354.04 Å2
Dissociation area: 616.71 Å2
Dissociation energy (ΔGdiss): -0.59 kcal/mol
Dissociation entropy (TΔSdiss): 5.53 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-159934
Assembly 3
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Assembly Name: Apocarotenoid-15,15'-oxygenase
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Multimeric state: monomeric
Accessible surface area: 19263.01 Å2
Buried surface area: 1318.7 Å2
Dissociation area: 599.96 Å2
Dissociation energy (ΔGdiss): 1.41 kcal/mol
Dissociation entropy (TΔSdiss): 5.57 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-159934
Assembly 4
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Assembly Name: Apocarotenoid-15,15'-oxygenase
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Multimeric state: monomeric
Accessible surface area: 19171.4 Å2
Buried surface area: 1322.99 Å2
Dissociation area: 600.03 Å2
Dissociation energy (ΔGdiss): -0.44 kcal/mol
Dissociation entropy (TΔSdiss): 5.6 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-159934

Macromolecules

Apocarotenoid-15,15'-oxygenase
Chains: A, B, C, D
Length: 490 amino acids
Theoretical weight: 54.34 KDa
Source organism: Synechocystis sp. PCC 6803
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P74334 (Residues: 1-490; Coverage: 100%)
Gene name: sll1541
Pfam: Retinal pigment epithelial membrane protein
InterPro: Carotenoid oxygenase
Apocarotenoid-15,15'-oxygenase in PDB entry 2biw, assembly 1, front view.
Apocarotenoid-15,15'-oxygenase in PDB entry 2biw, assembly 1, side view.
Apocarotenoid-15,15'-oxygenase in PDB entry 2biw, assembly 1, top view.
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