CATH Classification

Domain Context

CATH Clusters

Superfamily Di-copper center containing domain from catechol oxidase
Functional Family Polyphenol oxidase, chloroplastic

Enzyme Information

1.10.3.1
Catechol oxidase.
based on mapping to UniProt P43311
2 catechol + O(2) = 2 1,2-benzoquinone + 2 H(2)O.
-!- A type 3 copper protein that catalyzes exclusively the oxidation of catechols (i.e., o-diphenols) to the corresponding o-quinones. -!- The enzyme also acts on a variety of substituted catechols. -!- It is different from tyrosinase, EC 1.14.18.1, which can catalyze both the monooxygenation of monophenols and the oxidation of catechols.

UniProtKB Entries (1)

P43311
PPO_VITVI
Vitis vinifera
Polyphenol oxidase, chloroplastic

PDB Structure

PDB 2P3X
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Cloning, sequencing, purification, and crystal structure of Grenache (Vitis vinifera) polyphenol oxidase.
Virador, V.M., Reyes Grajeda, J.P., Blanco-Labra, A., Mendiola-Olaya, E., Smith, G.M., Moreno, A., Whitaker, J.R.
J.Agric.Food Chem.