ID 2.1.1.91 DE isobutyraldoxime O-methyltransferase. AN aldoxime methyltransferase. CA 2-methylpropanal oxime + S-adenosyl-L-methionine = 2-methylpropanal CA O-methyloxime + H(+) + S-adenosyl-L-homocysteine. CC -!- Oximes of C4 to C6 aldehydes can act as acceptors. CC -!- The most active substrate is 2-methylbutyraldoxime. //