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Last gene in phenylalanine pathway identified

The missing link in the phenylalanine amino acid biosynthesis pathway has been discovered by researchers at the US Purdue University (West Lafayette, Indiana). Nine of the ten genes involved in plant biosynthesis of phenylalanine are already known. The newly identified tenth gene encodes a prephenate aminotransferase, which is also involved in the biosynthesis of another amino acid, tyrosine, which is a derivative of phenylalanine.


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