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EC 1.14.13.196 Details
show Brenda entryEC number
1.14.13.196
Accepted name
L-ornithine N5-monooxygenase [NAD(P)H]
Reaction
L-ornithine + NAD(P)H + H+ + O2 = N5-hydroxy-L-ornithine + NAD(P)+ + H2O
Other name(s)
SidA (ambiguous)
Systematic name
L-ornithine,NAD(P)H:oxygen oxidoreductase (N5-hydroxylating)
Comment
A flavoprotein (FAD). The enzyme from the pathogenic fungus Aspergillus fumigatus catalyses a step in the biosynthesis of the siderophores triacetylfusarinine and desferriferricrocin, while the enzyme from the bacterium Kutzneria sp. 744 is involved in the biosynthesis of piperazate, a building block of the kutzneride family of antifungal antibiotics. Activity of the fungal enzyme is higher with NADPH, due to the fact that following the reduction of the flavin, NADP+ (but not NAD+) stabilizes the C4a-hydroperoxyflavin intermediate that oxidizes the substrate [3]. cf. EC 1.14.13.195, L-ornithine N5-monooxygenase (NADPH).
History
created 2014
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1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.6.99.4 created 1965, deleted 1972 1.6.99.8 created 1972, deleted 2002 1.6.99.9 created 1972, deleted 2002 1.6.99.10 created 1978, deleted 1981 1.6.99.11 created 1989, deleted 2002 1.6.99.12 created 1989, deleted 2002 1.6.99.13 created 1992, deleted 2002 1.14.13.45 created 1992, deleted 2003
