// Workers AI · dad joke modeWhat did pyruvate oxidase say? "I'm oxidizing my options.
| pyruvate oxidase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 1.2.3.3 | ||||||||
| CAS no. | 9001-96-1 | ||||||||
| Databases | |||||||||
| BRENDA | enzyme data | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | enzyme entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| Rhea | reactions | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
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In enzymology, pyruvate oxidase (EC 1.2.3.3) is an enzyme that catalyzes the chemical reaction
The three substrates of this enzyme are pyruvic acid, phosphate, and oxygen. Its products are acetyl phosphate, carbon dioxide, and hydrogen peroxide.[1][2][3]
This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with oxygen as acceptor. The systematic name of this enzyme class is pyruvate:oxygen 2-oxidoreductase (phosphorylating). Other names in common use include pyruvic oxidase, and phosphate-dependent pyruvate oxidase. This enzyme participates in pyruvate metabolism. It has 2 cofactors: FAD, and Thiamin diphosphate.
Structural studies
[edit]As of late 2007, 12 structures have been solved for this class of enzymes, with PDB accession codes PDB: 1POW, PDB: 1POX, PDB: 1V5E, PDB: 1V5F, PDB: 1V5G, PDB: 1Y9D, PDB: 2DJI, PDB: 2EZ4, PDB: 2EZ8, PDB: 2EZ9, PDB: 2EZT, and PDB: 2EZU.
References
[edit]- ↑ Enzyme 1.2.3.3 at KEGG Pathway Database.
- ↑ Williams FR, Hager LP (1966). "Crystalline flavin pyruvate oxidase from Escherichia coli. I Isolation and properties of the flavoprotein". Arch. Biochem. Biophys. 116 (1): 168–76. doi:10.1016/0003-9861(66)90025-7. PMID 5336022.
- ↑ Tittmann K, Wille G, Golbik R, Weidner A, Ghisla S, Hubner G (2005). "Radical phosphate transfer mechanism for the thiamin diphosphate- and FAD-dependent pyruvate oxidase from Lactobacillus plantarum Kinetic coupling of intercofactor electron transfer with phosphate transfer to acetyl-thiamin diphosphate via a transient FAD semiquinone/hydroxyethyl-ThDP radical pair". Biochemistry. 44 (40): 13291–303. doi:10.1021/bi051058z. PMID 16201755.
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