EC |
1.14.11.12 |
Accepted name: |
gibberellin-44 dioxygenase |
Reaction: |
gibberellin 44 + 2-oxoglutarate + O2 = gibberellin 19 + succinate + CO2 |
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For diagram of diterpenoid biosynthesis, click here |
Other name(s): |
oxygenase, gibberellin A44 oxidase; (gibberellin-44), 2-oxoglutarate:oxygen oxidoreductase |
Systematic name: |
(gibberellin-44),2-oxoglutarate:oxygen oxidoreductase |
Comments: |
Requires Fe2+. |
Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 112198-85-3 |
References: |
1. |
Gilmour, S.J., Bleecker, A.B. and Zeevaart, J.A.D. Partial-purification of gibberellin oxidases from spinach leaves. Plant Physiol. 85 (1987) 87–90. [PMID: 16665690] |
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[EC 1.14.11.12 created 1990] |
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EC |
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: |
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] |
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[EC 2.1.1.276 created 2013] |
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