We've built a new version of this page with an interactive 3D viewer. Try it out in beta and help us improve:

3cqn

X-ray diffraction
2Å resolution

Crystal Structure of the Lipocalin domain of Violaxanthin de-epoxidase (VDE) at pH7

Released:
Model geometry
Fit model/data

Function and Biology Details

Reaction catalysed:
all-trans-violaxanthin + 2 L-ascorbate = all-trans-zeaxanthin +2 L-dehydroascorbate + 2 H2O.
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-174441 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Violaxanthin de-epoxidase, chloroplastic Chains: A, B
Molecule details ›
Chains: A, B
Length: 185 amino acids
Theoretical weight: 21.34 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: Q39249 (Residues: 191-366; Coverage: 38%)
Gene names: AVDE1, At1g08550, F22O13.3, NPQ1, T27G7.23, VDE1, VXDE
Sequence domains: VDE lipocalin domain
Structure domains: Lipocalin

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

wwPDB Validation report is not available for this entry.
X-ray source: ESRF BEAMLINE ID23-1
Spacegroup: P1
Unit cell:
a: 34.634Å b: 52.458Å c: 54.605Å
α: 82.52° β: 75.99° γ: 74.54°
R-values:
R R work R free
0.2 0.196 0.272
Expression system: Escherichia coli