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Pathway Description
Tyrosine Metabolism
Arabidopsis thaliana
Metabolic Pathway
The biosynthesis of tyrosine begins with chorismate interacting with chorismate mutase resulting in a prephenate. Prephenate reacts with a hydrogen ion through a prephenate dehydratase resulting in the release of NADPH, carbon dioxide and 4-hydroxyphenylpyruvate. The latter compound can be turn into tyrosine through two different reversible reactions a) 4-hydroxyphenylpyruvate reacts with alanine through a aromatic amino acid aminotransferase 2 resulting in the release of pyruvate and phenylalanine. b) 4-hydroxyphenylpyruvatereacts with glutamic acid through a amino aci aminotransferase 1 resulting in the release of oxoglutaric acid and phenylalanine. The degradation of phenylalanine begins with the two previous reactions turning phenylalanine back into 4-hydroxyphenylpyruvate. The latter compound reacts with a phenylpyruvate carboxy lyase resulting in the release of phenylacetaldehyde. This latter compound reacts with a alcohol dehydrogenase resulting in the release of tyrosol.
References
Tyrosine Metabolism References
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