ExplorEnz: EC 2.1.1.276

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2.1.1.276

Accepted name:

gibberellin A₄ carboxyl methyltransferase

Reaction:

S-adenosyl-L-methionine + gibberellin A₄ = S-adenosyl-L-homocysteine + methyl gibberellin A₄

Glossary:

gibberellin A₄ = (1S,2S,4aR,4bR,7R,9aR,10S,10aR)-2-hydroxy-1-methyl-8-methylidene-13-oxododecahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylic acid
methyl gibberellin A₄ = methyl (1S,2S,4aR,4bR,7R,9aR,10S,10aR)-2-hydroxy-1-methyl-8-methylene-13-oxododecahydro-4a,1-(epoxymethano)-7,9a-methanobenzo[a]azulene-10-carboxylate

Other name(s):

GAMT2; gibberellin A₄ O-methyltransferase

Systematic name:

S-adenosyl-L-methionine:gibberellin A₄ O-methyltransferase

Comments:

The enzyme also methylates gibberellins A₃₄ (80%), A₉ (60%), and A₃ (45%) with significant activity.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

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 2.1.1.276 created 2013]