Entry
Name
3-O-acetyl-4'-O-demethylpapaveroxine 4'-O-methyltransferase
Class
Transferases;
Transferring one-carbon groups;
Methyltransferases
BRITE hierarchy
Sysname
S-adenosyl-L-methionine:3-O-acetyl-4'-O-demethylpapaveroxine 4'-O-methyltransferase
Reaction(IUBMB)
S-adenosyl-L-methionine + 3-O-acetyl-4'-O-demethylpapaveroxine = S-adenosyl-L-homocysteine + 3-O-acetylpapaveroxine [RN:
R11692 ]
Reaction(KEGG)
Substrate
S-adenosyl-L-methionine [CPD:
C00019 ];
3-O-acetyl-4'-O-demethylpapaveroxine [CPD:
C21590 ]
Product
S-adenosyl-L-homocysteine [CPD:
C00021 ];
3-O-acetylpapaveroxine [CPD:
C21591 ]
Comment
This activity is part of the noscapine biosynthesis pathway, as characterized in the plant Papaver somniferum (opium poppy). It is catalysed by heterodimeric complexes of the OMT2 gene product and the product of either OMT3 or 6OMT. OMT2 is the catalytic subunit in both complexes.
History
EC 2.1.1.352 created 2018
Pathway
ec00950 Isoquinoline alkaloid biosynthesis
ec01110 Biosynthesis of secondary metabolites
Orthology
K23157 3-O-acetyl-4'-O-demethylpapaveroxine 4'-O-methyltransferase subunit OMT2
Genes
Taxonomy
Reference
Authors
Li Y, Smolke CD
Title
Engineering biosynthesis of the anticancer alkaloid noscapine in yeast.
Journal
Reference
Authors
Park MR, Chen X, Lang DE, Ng KKS, Facchini PJ
Title
Heterodimeric O-methyltransferases involved in the biosynthesis of noscapine in opium poppy.
Journal
Sequence
Other DBs
ExPASy - ENZYME nomenclature database: 2.1.1.352
LinkDB
All DBs