The Enzyme Database

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EC 2.1.1.278     
Accepted name: indole-3-acetate O-methyltransferase
Reaction: S-adenosyl-L-methionine + (indol-3-yl)acetate = S-adenosyl-L-homocysteine + methyl (indol-3-yl)acetate
Other name(s): IAA carboxylmethyltransferase; IAMT
Systematic name: S-adenosyl-L-methionine:(indol-3-yl)acetate O-methyltransferase
Comments: Binds Mg2+. The enzyme is found in plants and is important for regulation of the plant hormone (indol-3-yl)acetate. The product, methyl (indol-3-yl)acetate is inactive as hormone [2].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Zubieta, C., Ross, J.R., Koscheski, P., Yang, Y., Pichersky, E. and Noel, J.P. Structural basis for substrate recognition in the salicylic acid carboxyl methyltransferase family. Plant Cell 15 (2003) 1704–1716. [PMID: 12897246]
2.  Li, L., Hou, X., Tsuge, T., Ding, M., Aoyama, T., Oka, A., Gu, H., Zhao, Y. and Qu, L.J. The possible action mechanisms of indole-3-acetic acid methyl ester in Arabidopsis. Plant Cell Rep. 27 (2008) 575–584. [PMID: 17926040]
3.  Zhao, N., Ferrer, J.L., Ross, J., Guan, J., Yang, Y., Pichersky, E., Noel, J.P. and Chen, F. Structural, biochemical, and phylogenetic analyses suggest that indole-3-acetic acid methyltransferase is an evolutionarily ancient member of the SABATH family. Plant Physiol. 146 (2008) 455–467. [PMID: 18162595]
[EC 2.1.1.278 created 2013]
 
 


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