The Enzyme Database

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Accepted name: indole-3-pyruvate monooxygenase
Reaction: (indol-3-yl)pyruvate + NADPH + H+ + O2 = (indol-3-yl)acetate + NADP+ + H2O + CO2
For diagram of indoleacetic acid biosynthesis, click here
Glossary: (indol-3-yl)pyruvate = 3-(1H-indol-3-yl)-2-oxopropanoate, (indol-3-yl)acetate = 2-(1H-indol-3-yl)acetate = indole-3-acetate
Other name(s): YUC2 (gene name); spi1 (gene name)
Systematic name: indole-3-pyruvate,NADPH:oxygen oxidoreductase (1-hydroxylating, decarboxylating)
Comments: This plant enzyme, along with EC L-tryptophan—pyruvate aminotransferase, is responsible for the biosynthesis of the plant hormone indole-3-acetate from L-tryptophan.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Mashiguchi, K., Tanaka, K., Sakai, T., Sugawara, S., Kawaide, H., Natsume, M., Hanada, A., Yaeno, T., Shirasu, K., Yao, H., McSteen, P., Zhao, Y., Hayashi, K., Kamiya, Y. and Kasahara, H. The main auxin biosynthesis pathway in Arabidopsis. Proc. Natl. Acad. Sci. USA 108 (2011) 18512–18517. [DOI] [PMID: 22025724]
2.  Zhao, Y. Auxin biosynthesis: a simple two-step pathway converts tryptophan to indole-3-acetic acid in plants. Mol. Plant 5 (2012) 334–338. [DOI] [PMID: 22155950]
[EC created 2012]

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