ID 1.2.3.3 DE Pyruvate oxidase. AN Phosphate-dependent pyruvate oxidase. AN Pyruvic oxidase. CA Pyruvate + phosphate + O(2) = acetyl phosphate + CO(2) + H(2)O(2). CF FAD; Thiamine diphosphate. CC -!- Two reducing equivalents are transferred from the resonant CC carbanion/enamine forms of 2-hydroxyethyl-thiamine-diphosphate to the CC adjacent flavin cofactor, yielding 2-acetyl-thiamine diphosphate CC (AcThDP) and reduced flavin. CC -!- FADH is reoxidized by O(2) to yield H(2)O(2) and FAD and AcThDP is CC cleaved phosphorolytically to acetyl phosphate and thiamine CC diphosphate. PR PROSITE; PDOC00166; DR P37063, POXB_LACPL ; Q54970, POXB_STRPN ; //