Pyruvic oxime dioxygenase

Alcaligenes faecalis has a hydroxylamine-oxidizing enzyme which differs from the enzyme of other heterotrophic nitrifying bacteria. In this bacterium, hydroxylamine is oxidized through pyruvic oxime (Fig. 3.6). Pyruvic acid derived from lactate, succinate, and other carboxylates reacts nonenzymatically with hydroxylamine formed from ammonia to form pyruvic oxime. This compound is oxidized to nitrite and pyruvic acid by the catalysis of pyruvic oxime dioxygenase (Ono et al., 1996, 1999). [Pg.38]

Ono Y, Enokiya A, Masuko D, Shoji K, Yamanaka T (1999) Pyruvic oxime dioxygenase from the heterotrophic nitrifier Alcaligenes faecalis purification, and molecular and enzymatic properties. Plant Cell Physiol 40 47-52... [Pg.142]

Ono Y, Makino N, Hoshino Y, Shoji K, Yamanaka T (1996) An iron dioxygenase from Alcaligenes faecalis catalyzing the oxidation of pyruvic oxime to nitrite. FEMS Microbiol Lett 139 103-108... [Pg.142]

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