Journal
NATURE CHEMICAL BIOLOGY
Volume 7, Issue 1, Pages 19-21Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NCHEMBIO.485
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Funding
- US Agriculture and Food Research Initiative, US Department of Agriculture National Institute of Food and Agriculture [2010-65115-20385]
- US National Science Foundation [MCB-0615700]
- Japan Society for the Promotion of Science
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The aromatic amino acids L-phenylalanine and L-tyrosine and their plant-derived natural products are essential in human and plant metabolism and physiology. Here we identified Petunia hybrida and Arabidopsis thaliana genes encoding prephenate aminotransferases (PPA-ATs), thus completing the identification of the genes involved in phenylalanine and tyrosine biosyntheses. Biochemical and genetic characterization of enzymes showed that PPA-AT directs carbon flux from prephenate toward arogenate, making the arogenate pathway predominant in plant phenylalanine biosynthesis.
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