Thiamine oxidase

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thiamin oxidase
Thiamine oxidase reaction.PNG
Thiamine oxidase reaction
Identifiers
EC no. 1.1.3.23
CAS no. 96779-44-1
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
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NCBI proteins

In enzymology, a thiamine oxidase (EC 1.1.3.23) is an enzyme that catalyzes the chemical reaction

thiamine + 2 O2 + H2O thiamine acetic acid + 2 H2O2

The 3 substrates of this enzyme are thiamine, O2, and H2O, whereas its two products are thiamine acetic acid and H2O2.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. The systematic name of this enzyme class is thiamine:oxygen 5-oxidoreductase. Other names in common use include thiamin dehydrogenase, thiamine dehydrogenase, and thiamin:oxygen 5-oxidoreductase. This enzyme participates in thiamine metabolism. It employs one cofactor, FAD.

References