PDBe 1bt1

X-ray diffraction
2.7Å resolution

CATECHOL OXIDASE FROM IPOMOEA BATATAS (SWEET POTATOES) IN THE NATIVE CU(II)-CU(II) STATE

Released:
Source organism: Ipomoea batatas
Primary publication:
Crystal structure of a plant catechol oxidase containing a dicopper center.
Nat. Struct. Biol. 5 1084-90 (1998)
PMID: 9846879

Function and Biology Details

Reaction catalysed:
2 catechol + O(2) = 2 1,2-benzoquinone + 2 H(2)O. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Polyphenol oxidase I, chloroplastic Chains: A, B
Molecule details ›
Chains: A, B
Length: 345 amino acids
Theoretical weight: 38.81 KDa
Source organism: Ipomoea batatas
UniProt:
  • Canonical: Q9ZP19 (Residues: 1-345; Coverage: 70%)
Gene name: co-1
Sequence domains: Common central domain of tyrosinase
Structure domains: Di-copper center containing domain from catechol oxidase

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P21
Unit cell:
a: 45.82Å b: 164.75Å c: 52.16Å
α: 90° β: 97.5° γ: 90°
R-values:
R R work R free
0.168 0.168 0.256