The molecule is a tetrapeptide composed of L-glutamic acid, two L-threonine units and L-tyrosine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-glutamic acid, a L-threonine and a L-tyrosine.
(4S)-4-amino-5-[[(2S,3R)-1-[[(2S,3R)-1-[[(1S)-1-carboxy-2-(4-hydroxyphenyl)ethyl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-5-oxopentanoic acid