The Enzyme Database

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Accepted name: gibberellin A9 O-methyltransferase
Reaction: S-adenosyl-L-methionine + gibberellin A9 = S-adenosyl-L-homocysteine + methyl gibberellin A9
Glossary: gibberellin A9 = (1R,4aR,4bR,7R,9aR,10S,10aR)-1-methyl-8-methylene-13-oxododecahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylic acid
methyl gibberellin A9 = methyl (1R,4aR,4bR,7R,9aR,10S,10aR)-1-methyl-8-methylene-13-oxododecahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylate
Other name(s): GAMT1
Systematic name: S-adenosyl-L-methionine:gibberellin A9 O-methyltransferase
Comments: The enzyme also methylates gibberellins A20 (95%), A3 (80%), A4 (69%) and A34 (46%) with significant activity.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Varbanova, M., Yamaguchi, S., Yang, Y., McKelvey, K., Hanada, A., Borochov, R., Yu, F., Jikumaru, Y., Ross, J., Cortes, D., Ma, C.J., Noel, J.P., Mander, L., Shulaev, V., Kamiya, Y., Rodermel, S., Weiss, D. and Pichersky, E. Methylation of gibberellins by Arabidopsis GAMT1 and GAMT2. Plant Cell 19 (2007) 32–45. [DOI] [PMID: 17220201]
[EC created 2013]

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