Identification of β-phenylalanine as a non-protein amino acid in cultivated rice, Oryza sativa

Non-protein amino acids, often analogs of the standard 20 protein amino acids, have been discovered in many plant species. Recent research with cultivated rice (Oryza sativa) identified (3R)-β-tyrosine, as well as a tyrosine amino mutase that synthesizes (3R)-β-tyrosine from the protein amino acid (...

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Bibliographic Details
Published in:Communicative & integrative biology 2015-09, Vol.8 (5), p.e1086045-e1086045
Main Authors: Yokoo, Takayuki, Takata, Ryo, Yan, Jian, Matsumoto, Fuka, Teraishi, Masayoshi, Okumoto, Yutaka, Jander, Georg, Mori, Naoki
Format: Article
Language:English
Subjects:
Addendum
Amino acids
aminomutase
ammonia lyase
Gas chromatography
Mass spectroscopy
Oryza sativa
Phenylalanine
Proteins
Rice
Tyrosine
β-amino acid
β-phenylalanine
β-tyrosine
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Summary:Non-protein amino acids, often analogs of the standard 20 protein amino acids, have been discovered in many plant species. Recent research with cultivated rice (Oryza sativa) identified (3R)-β-tyrosine, as well as a tyrosine amino mutase that synthesizes (3R)-β-tyrosine from the protein amino acid (2S)-α-tyrosine. Gas chromatography-mass spectrometry (GC-MS) assays and comparison to an authentic standard showed that β-phenylalanine is also a relatively abundant non-protein amino acid in rice leaves and that its biosynthesis occurs independently from that of β-tyrosine.
ISSN:1942-0889
1942-0889
DOI:10.1080/19420889.2015.1086045