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Information on EC 1.13.12.16 - nitronate monooxygenase

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IUBMB Comments
Previously classified as 2-nitropropane dioxygenase (EC 1.13.11.32), but it is now recognized that this was the result of the slow ionization of nitroalkanes to their nitronate (anionic) forms. The enzymes from the fungus Neurospora crassa and the yeast Williopsis saturnus var. mrakii (formerly classified as Hansenula mrakii) contain non-covalently bound FMN as the cofactor. Neither hydrogen peroxide nor superoxide were detected during enzyme turnover. Active towards linear alkyl nitronates of lengths between 2 and 6 carbon atoms and, with lower activity, towards propyl-2-nitronate. The enzyme from N. crassa can also utilize neutral nitroalkanes, but with lower activity.
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The enzyme appears in viruses and cellular organisms
Reaction Schemes
Synonyms
2-nitropropane dioxygenase, nitronate monooxygenase, pa4202, nitroalkane-oxidizing enzyme, rv1894c, sa-nao, protein pa4202, nitropropane dioxygenase, p3n monooxygenase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
ethylnitronate + O2 = acetaldehyde + nitrite + other products
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PATHWAY SOURCE
PATHWAYS
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