› 3dsi

X-ray diffraction
1.6Å resolution

Crystal Structure of Arabidopsis thaliana Allene Oxide Synthase (AOS, cytochrome P450 74A, CYP74A) Complexed with 13(S)-HOT at 1.60 A resolution

Released:
DOI: 10.2210/pdb3dsi/pdb
PDB entry 3dsi coloured by chain, front view.
PDB entry 3dsi coloured by chain, side view.
PDB entry 3dsi coloured by chain, top view.
Source organism: Arabidopsis thaliana
Primary publication:
Structural insights into the evolutionary paths of oxylipin biosynthetic enzymes.
Lee DS, Nioche P, Hamberg M, Raman CS
Nature 455 363-8 (2008)
PMID: 18716621

Function and Biology Details

Reaction catalysed: 
(9Z,11E,15Z)-(13S)-hydroperoxyoctadeca-9,11,15-trienoate = (9Z,15Z)-(13S)-12,13-epoxyoctadeca-9,11,15-trienoate + H(2)O
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-188294 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Allene oxide synthase, chloroplastic Chains: A, B
Molecule details ›
Chains: A, B
Length: 495 amino acids
Theoretical weight: 55.77 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: Q96242 (Residues: 34-518; Coverage: 94%)
Gene names: AOS, At5g42650, CYP74A, MJB21.2
Sequence domains: Cytochrome P450
Structure domains: Cytochrome P450

Ligands and Environments


Cofactor: Ligand HEM 2 x HEM
3 bound ligands:
Ligand T24 1 x T24
Ligand OCT 2 x OCT
Ligand GOL 3 x GOL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-2
Spacegroup: P212121
Unit cell:
a: 63.407Å b: 104.851Å c: 162.417Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.168 0.167 0.185
Expression system: Escherichia coli

Quick links

Citations

40 review citations

Jasmonate passes muster: a receptor and targets for the defense hormone.
Browse J. (2009)
39 more

3 mentions without citation

Global identification, structural analysis and expression characterization of cytochrome P450 monooxygenase superfamily in rice.
Wei et al. (2018)
2 more