In enzymology, a pyruvate oxidase (EC 1.2.3.3) is an enzyme that catalyzes the chemical reaction: pyruvate + phosphate + O2 ↔ acetyl phosphate + CO2 + H2O2. The 3 substrates of this enzyme are
pyruvate, phosphate, and O2, whereas its 3 products are acetyl phosphate, CO2, and H2O2.http://www.creative-enzymes.com/product/Native-Aerococcuss-Viridans-Pyruvate-Oxidase_765.html