1.14.14.41 physiological function CYP71E7 is the oxime-metabolizing cytochrome P450 in the biosynthesis of lotaustralin and linamarin. Expression of CYP71E7 in yeast affords microsomes converting 2-methylpropanal oxime and 2-methylbutanal oxime to the corresponding cyanohydrins, which dissociate into acetone and 2-butanone, respectively, and hydrogen cyanide 741198