The Enzyme Database

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EC 1.3.3.12     
Accepted name: L-galactonolactone oxidase
Reaction: L-galactono-1,4-lactone + O2 = L-ascorbate + H2O2
Other name(s): L-galactono-1,4-lactone oxidase
Systematic name: L-galactono-1,4-lactone:oxygen 3-oxidoreductase
Comments: A flavoprotein. Acts on the 1,4-lactones of L-galactonic, D-altronic, L-fuconic, D-arabinic and D-threonic acids; not identical with EC 1.1.3.8 L-gulonolactone oxidase. (cf. EC 1.3.2.3 galactonolactone dehydrogenase).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 69403-13-0
References:
1.  Bleeg, H.S. and Christensen, F. Biosynthesis of ascorbate in yeast. Purification of L-galactono-1,4-lactone oxidase with properties different from mammalian L-gulonolactone oxidase. Eur. J. Biochem. 127 (1982) 391–396. [PMID: 6754380]
[EC 1.3.3.12 created 1984 as EC 1.1.3.24, transferred 2006 to EC 1.3.3.12]
 
 


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