valine N-monooxygenase

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Cat No.

EXWM-0718

Description

A heme-thiolate protein (P-450). This enzyme catalyses two successive N-hydroxylations of L-valine, the first committed steps in the biosynthesis of the cyanogenic glucoside linamarin in Manihot esculenta (cassava). The product of the two hydroxylations, N,N-dihydroxy-L-valine, 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-methylpropanal oxime, undergoes a spontaneous isomerization to the (Z) form. The enzyme can also accept L-isoleucine as substrate, with a lower activity. It is different from EC 1.14.13.117 (isoleucine N-monooxygenase), which prefers L-isoleucine.

Form

Liquid or lyophilized powder

Enzyme Commission Number

EC 1.14.13.118

Storage

Store it at +4 ºC for short term. For long term storage, store it at -20 ºC～-80 ºC.

Synonyms

CYP79D1; CYP79D2

Reaction

L-valine + 2 O2 + 2 NADPH + 2 H+ = (E)-2-methylpropanal oxime + 2 NADP+ + CO2 + 3 H2O (overall reaction); (1a) L-valine + O2 + NADPH + H+ = N-hydroxy-L-valine + NADP+ + H2O; (1b) N-hydroxy-L-valine + O2 + NADPH + H+ = N,N-dihydroxy-L-valine + NADP+ + H2O; (1c) N,N-dihydroxy-L-valine = (E)-2-methylpropanal oxime + CO2 + H2O (spontaneous)

Notes

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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Project Description:

For research and industrial use only, not for personal medicinal use.

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