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Crystal Structure of Arabidopsis thaliana Allene Oxide Synthase (AOS, cytochrome P450 74A, CYP74A) Complexed with 13(S)-HOD at 1.85 A Resolution

X-ray diffraction
1.85Å resolution
PDB entry 2rch coloured by chain, front view.
PDB entry 2rch coloured by chain, side view.
PDB entry 2rch coloured by chain, top view.
Source organism: Arabidopsis thaliana
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Allene oxide synthase, chloroplastic
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Multimeric state: monomeric
Accessible surface area: 18886.54 Å2
Buried surface area: 2141.45 Å2
Dissociation area: 463.39 Å2
Dissociation energy (ΔGdiss): 6.99 kcal/mol
Dissociation entropy (TΔSdiss): 4.23 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-188294
Assembly 2
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Assembly Name: Allene oxide synthase, chloroplastic
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Multimeric state: monomeric
Accessible surface area: 19981.03 Å2
Buried surface area: 1491.35 Å2
Dissociation area: 97.83 Å2
Dissociation energy (ΔGdiss): 1.22 kcal/mol
Dissociation entropy (TΔSdiss): 0.84 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-188294

Macromolecules

Allene oxide synthase, chloroplastic
Chains: A, B
Length: 495 amino acids
Theoretical weight: 55.77 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q96242 (Residues: 34-518; Coverage: 94%)
Gene names: AOS, At5g42650, CYP74A, MJB21.2
Pfam: Cytochrome P450
InterPro:
CATH: Cytochrome P450
Allene oxide synthase, chloroplastic in PDB entry 2rch, assembly 1, front view.
Allene oxide synthase, chloroplastic in PDB entry 2rch, assembly 1, side view.
Allene oxide synthase, chloroplastic in PDB entry 2rch, assembly 1, top view.
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