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EC 1.14.14.42 Details
show Brenda entryEC number
1.14.14.42
Accepted name
homomethionine N-monooxygenase
Reaction
an L-polyhomomethionine + 2 [reduced NADPH—hemoprotein reductase] + 2 O2 = an (E)-ω-(methylsulfanyl)alkanal oxime + 2 [oxidized NADPH—hemoprotein reductase] + CO2 + 3 H2O (overall reaction);;(1a) an L-polyhomomethionine + [reduced NADPH—hemoprotein reductase] + O2 = an L-N-hydroxypolyhomomethionine + [oxidized NADPH—hemoprotein reductase] + H2O;;(1b) an L-N-hydroxypolyhomomethionine + [reduced NADPH—hemoprotein reductase] + O2 = an L-N,N-dihydroxypolyhomomethionine + [oxidized NADPH—hemoprotein reductase] + H2O;;(1c) an L-N,N-dihydroxypolyhomomethionine = an (E)-ω-(methylsulfanyl)alkanal oxime + CO2 + H2O
Other name(s)
CYP79F1 (gene name),
CYP79F2 (gene name)
Systematic name
L-polyhomomethionine,[NADPH—hemoprotein reductase]:oxygen oxidoreductase
Comment
This plant cytochrome P-450 (heme thiolate) enzyme is involved in methionine-derived aliphatic glucosinolates biosynthesis. It catalyses two successive N-hydroxylations, which are followed by dehydration and decarboxylation. CYP79F1 from Arabidopsis thaliana can metabolize mono-, di-, tri-, tetra-, penta-, and hexahomomethionine to their corresponding aldoximes, while CYP79F2 from the same plant can only metabolize penta- and hexahomomethionine.
History
created 2017
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1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.6.6.1 created 1961, deleted 2002 1.6.6.2 created 1961, deleted 2002 1.6.6.3 created 1961, deleted 2002 1.6.6.4 created 1961, deleted 2002 1.6.6.5 created 1961, deleted 1964 1.6.6.6 created 1961, deleted 2002 1.6.6.7 created 1961, deleted 2002 1.6.6.8 created 1965, deleted 2002 1.6.6.10 created 1972, deleted 2002 1.6.6.11 created 1972, deleted 2002 1.6.6.12 created 1989, deleted 2002 1.6.6.13 created 1989, deleted 2002 1.14.14.2 created 1972, deleted 1976 1.14.14.4 created 2000, deleted 2002
