Tabersonine 16-O-methyltransferase

{{infobox enzyme

| Name = 11-O-demethyl-17-O-deacetylvindoline O-methyltransferase

| EC_number = 2.1.1.94

| CAS_number = 100984-95-0

| GO_code = 0030766

| image =

| width =

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In enzymology, a tabersonine 16-O-methyltransferase ({{EC number|2.1.1.94}}) is an enzyme that catalyzes the chemical reaction

:S-adenosyl-L-methionine + 16-hydroxytabersonine $\backslash rightleftharpoons$ S-adenosyl-L-homocysteine + 16-methoxytabersonine

Thus, the two substrates of this enzyme are S-adenosyl methionine and 16-hydroxytabersonine, whereas its two products are S-adenosylhomocysteine and 16-methoxytabersonine.

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:16-hydroxytabersonine 16-O-methyltransferase. Other names in common use include 11-demethyl-17-deacetylvindoline 11-methyltransferase, 11-O-demethyl-17-O-deacetylvindoline O-methyltransferase, S-adenosyl-L-methionine:11-O-demethyl-17-O-deacetylvindoline, and 11-O-methyltransferase. This enzyme participates in terpene indole and ipecac alkaloid biosynthesis.