ID   2.1.1.142
DE   cycloartenol 24-C-methyltransferase.
AN   sterol C-methyltransferase.
CA   cycloartenol + S-adenosyl-L-methionine = cyclolaudenol + S-adenosyl-L-
CA   homocysteine + H(+).
CC   -!- S-Adenosyl-L-methionine methylates the Si face of the 24(25)-double
CC       bond with elimination of a hydrogen atom from the pro-Z methyl group
CC       at C-25.
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