6-O-methylnorlaudanosoline 5'-O-methyltransferase

{{more footnotes needed|date=April 2023}}

{{enzyme

| Name = 6-O-methylnorlaudanosoline 5'-O-methyltransferase

| EC_number = 2.1.1.121

| CAS_number = 89511-99-9

| GO_code = 0030781

| image =

| width =

| caption =

}}

In enzymology, a 6-O-methylnorlaudanosoline 5'-O-methyltransferase ({{EC number|2.1.1.121}}) is an enzyme that catalyzes the chemical reaction

:S-adenosyl-L-methionine + 6-O-methylnorlaudanosoline $\backslash rightleftharpoons$ S-adenosyl-L-homocysteine + nororientaline

Thus, the two substrates of this enzyme are S-adenosyl methionine and 6-O-methylnorlaudanosoline, whereas its two products are S-adenosylhomocysteine and nororientaline.

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:6-O-methylnorlaudanosoline 5'-O-methyltransferase. This enzyme participates in alkaloid biosynthesis i.