Editor-in-Chief: Brüne, Bernhard
Editorial Board Member: Buchner, Johannes / Lei, Ming / Ludwig, Stephan / Sies, Helmut / Turk, Boris / Wittinghofer, Alfred
SCImago Journal Rank (SJR) 2015: 1.607
Source Normalized Impact per Paper (SNIP) 2015: 0.751
Impact per Publication (IPP) 2015: 2.609
Identification of the Arabidopsis thaliana Flavonoid 3'-Hydroxylase Gene and Functional Expression of the Encoded P450 Enzyme
Citation Information: Biological Chemistry. Volume 381, Issue 8, Pages 749–753, ISSN (Print) 1431-6730, DOI: 10.1515/BC.2000.095, July 2005
- Published Online:
The phenylpropanoid pathway results in the synthesis of thousands of compounds, including flavonoids like flavonols, anthocyanidins and tannins. In Arabidopsis thaliana, the lack of tannins in the seed coat (testa) causes the transparent testa (tt) phenotype. In the present study, we identified the gene responsible for the tt7 mutation. We show that TT7 encodes the enzyme flavonoid 3′-hydroxylase (F3′H), and demonstrate that this P450-dependent monooxygenase has F3′H activity. The availability of the AtF3′H gene and promoter sequence will allow us to study the coregulation of a complete set of flavonol and anthocyanidin biosynthesis genes in A. thaliana, and makes in vitro synthesis of hydroxylated flavonoids more feasible.
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