PDBe 1kyw

X-ray diffraction
2.4Å resolution

Crystal Structure Analysis of Caffeic Acid/5-hydroxyferulic acid 3/5-O-methyltransferase in complex with 5-hydroxyconiferaldehyde


Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + 3,4-dihydroxy-trans-cinnamate = S-adenosyl-L- homocysteine + 3-methoxy-4-hydroxy-trans-cinnamate. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Caffeic acid 3-O-methyltransferase Chains: A, C, F
Molecule details ›
Chains: A, C, F
Length: 365 amino acids
Theoretical weight: 39.99 KDa
Source organism: Medicago sativa
Expression system: Escherichia coli
  • Canonical: P28002 (Residues: 1-365; Coverage: 100%)
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL7-1
Spacegroup: P2
Unit cell:
a: 104.473Å b: 61.996Å c: 112.213Å
α: 90° β: 111.27° γ: 90°
R R work R free
0.207 0.207 0.261
Expression system: Escherichia coli