Enzymes for Research, Diagnostic and Industrial Use

isoleucine N-monooxygenase

Cat No.
A heme-thiolate protein (P-450). This enzyme catalyses two successive N-hydroxylations of L-isoleucine, the first committed steps in the biosynthesis of the cyanogenic glucoside lotaustralin in the plant Lotus japonicus. The product of the two hydroxylations, N,N-dihydroxy-L-isoleucine, is extremely labile and dehydrates spontaneously. The dehydrated product is then subject to a decarboxylation that produces the oxime. It is still not known whether the decarboxylation is spontaneous or catalysed by the enzyme. The product, (E)-2-methylbutanal oxime, undergoes a spontaneous isomerization to the (Z) form. The enzyme can also accept L-valine as substrate, with a lower activity. It is different from EC (valine N-monooxygenase), which prefers L-valine.
Liquid or lyophilized powder
Enzyme Commission Number
Store it at +4 ºC for short term. For long term storage, store it at -20 ºC~-80 ºC.
CYP79D3; CYP79D4
L-isoleucine + 2 O2 + 2 NADPH + 2 H+ = (E)-2-methylbutanal oxime + 2 NADP+ + CO2 + 3 H2O (overall reaction); (1a) L-isoleucine + O2 + NADPH + H+ = N-hydroxy-L-isoleucine + NADP+ + H2O; (1b) N-hydroxy-L-isoleucine + O2 + NADPH + H+ = N,N-dihydroxy-L-isoleucine + NADP+ + H2O; (1c) N,N-dihydroxy-L-isoleucine = (E)-2-methylbutanal oxime + CO2 + H2O (spontaneous)
This item requires custom production and lead time is between 5-9 weeks. We can custom produce according to your specifications.
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