| bilirubin oxidase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 Cartoon representation of the X-ray structure of bilirubin oxidase from Myrothecium verrucaria based on PDB accession code 2xll. The protein ribbon is rainbow colored with the N-terminus in blue and the C-terminus in red. The four copper atoms are shown as spheres and the glycans shown as sticks. | |||||||||
| Identifiers | |||||||||
| EC no. | 1.3.3.5 | ||||||||
| CAS no. | 80619-01-8 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a bilirubin oxidase, BOD or BOx, (EC 1.3.3.5) is an enzyme encoded by a gene in various organisms that catalyzes the chemical reaction
- 2 bilirubin + O2 2 biliverdin + 2 H2O
This enzyme belongs to the family of oxidoreductases, to be specific those acting on the CH-CH group of donor with oxygen as acceptor. The systematic name of this enzyme class is bilirubin:oxygen oxidoreductase. This enzyme is also called bilirubin oxidase M-1. This enzyme participates in porphyrin and chlorophyll metabolism. It is widely studied as a catalyst for oxygen reduction.[1]
Two structures of bilirubin oxidase from the ascomycete Myrothecium verrucaria have been deposited in the Protein Data Bank (accession codes 3abg and 2xll).[2][3]
The active site consists of four copper centers, reminiscent of laccase. These centers are classified as type I (cys, met, his, his), type II (3his), and two type III (2his).
