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EC 1.1.3.37 Details
show Brenda entryEC number
1.1.3.37
Accepted name
D-arabinono-1,4-lactone oxidase
Reaction
D-arabinono-1,4-lactone + O2 = dehydro-D-arabinono-1,4-lactone + H2O2
Other name(s)
D-arabinono-γ-lactone oxidase,
ALO
Systematic name
D-arabinono-1,4-lactone:oxygen oxidoreductase
CAS registry number
182372-12-9
Comment
A flavoprotein (FAD). L-Galactono-1,4-lactone, L-gulono-1,4-lactone and L-xylono-1,4-lactone can also act as substrates but D-glucono-1,5-lactone, L-arabinono-1,4-lactone, D-galactono-1,4-lactone and D-gulono-1,4-lactone cannot [1]. With L-galactono-1,4-lactone as substrate, the product is L-ascorbate [3]. The product dehydro-D-arabinono-1,4-lactone had previously been referred to erroneously as D-erythroascorbate (CAS no.: 5776-48-7; formula: C6H8O6), although it was referred to as a five-carbon compound [1].
History
created 1999
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1 Oxidoreductases
1.1.1 With NAD+ or NADP+ as acceptor
1.1.3.1 created 1961, deleted 1984 1.1.3.25 created 1986, deleted 2005 1.1.3.26 created 1989, deleted 2002 1.1.3.31 created 1992, deleted 2003 1.1.3.32 created 1999, deleted 2002 1.1.3.33 created 1999, deleted 2002 1.1.3.34 created 1999, deleted 2002 1.1.3.35 created 1999, deleted 2002 1.1.3.36 created 1999, deleted 2002 1.1.99.15 created 1978, deleted 1980 1.1.99.17 created 1982, deleted 2003
