› 1u0w

X-ray diffraction
2Å resolution

An Aldol Switch Discovered in Stilbene Synthases Mediates Cyclization Specificity of Type III Polyketide Synthases: 18xCHS+resveratrol Structure

Released:
DOI: 10.2210/pdb1u0w/pdb
PDB entry 1u0w coloured by chain, front view.
PDB entry 1u0w coloured by chain, side view.
PDB entry 1u0w coloured by chain, top view.
Source organism: Medicago sativa
Primary publication:
An aldol switch discovered in stilbene synthases mediates cyclization specificity of type III polyketide synthases.
Austin MB, Bowman ME, Ferrer JL, Schröder J, Noel JP
Chem Biol 11 1179-94 (2004)
PMID: 15380179

Function and Biology Details

Reaction catalysed: 
3 malonyl-CoA + 4-coumaroyl-CoA = 4 CoA + naringenin chalcone + 3 CO(2)
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-151628 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Chalcone synthase 2 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 393 amino acids
Theoretical weight: 42.87 KDa
Source organism: Medicago sativa
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P30074 (Residues: 1-389; Coverage: 100%)
Gene name: CHS2
Sequence domains:
Structure domains: Peroxisomal Thiolase; Chain A, domain 1

Ligands and Environments

1 bound ligand:
Ligand STL 4 x STL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-1
Spacegroup: P1
Unit cell:
a: 64.328Å b: 71.724Å c: 85.748Å
α: 111.39° β: 91.61° γ: 90.07°
R-values:
R R work R free
0.206 0.203 0.264
Expression system: Escherichia coli BL21

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Citations

37 review citations

Resveratrol: its biologic targets and functional activity.
Pervaiz et al. (2009)
36 more

5 mentions without citation

Structure and function of enzymes involved in the biosynthesis of phenylpropanoids.
Ferrer et al. (2008)
4 more